{
  "metadata": {
    "schema_version": "mgw-data-pack/1.0",
    "canonical_version": "2026-10-10.standard-pack-v1",
    "input_dataset_version": "2026-10-09.standard-pack-factual-review-3",
    "coverage_version": "2026-10-09.standard-pack-factual-review-3",
    "input_sha256": "dd0263abcac86ae52f9be6cc16d2d2448ab3f2b8507d1bd7cd50c7c93bb57c65",
    "source_classification_sha256": "35fdaad61ebe0badda27504623dc96e1e93f164ecadd4ee40c4dca273f5b8cfc",
    "build_script_sha256": "a3ac0e4d503408d39f2c76bd7bef0a03511a35a1abc079ae5362fdf7b085f1e7",
    "built_at": "2026-10-09T10:58:45+00:00",
    "record_status": "commercially_approved",
    "distribution_ready": true,
    "commercially_approved_record_count": 4,
    "excluded_content": "inventories; history; events; private research; original documents; restricted source families",
    "csv_encoding": "utf-8-sig",
    "csv_null": "empty field",
    "csv_formula_escape": "one leading apostrophe for hazardous text or existing leading apostrophe",
    "summary_selection": "exactly one input observation per metric; quantity must have allowed primary/official URL; no latest inference",
    "scope": "sample"
  },
  "projects": [
    {
      "name_en": "Huoshaoyun / Kunlun Luopu smelter",
      "name_zh": "火烧云／昆仑锌业洛浦冶炼厂",
      "metal": "lead",
      "country_code": "CN",
      "production_value": null,
      "capacity_value": 110000,
      "production_unit": null,
      "capacity_unit": "t/year",
      "production_period_start": null,
      "production_period_end": null,
      "capacity_effective_date": null,
      "layer": "processing",
      "entity_scope": "single_site",
      "production_basis": null,
      "capacity_basis": "refined_lead",
      "production_ownership_basis": null,
      "capacity_ownership_basis": "project_100",
      "project_key": "lead:huoshaoyun-luopu-smelter",
      "asset_id": "huoshaoyun-luopu-smelter",
      "operator": "Xinjiang Kunlun Zinc",
      "year": null,
      "ownership_basis": "project_100",
      "basis": "refined_lead",
      "moisture_basis": null,
      "data_status": "reported",
      "source_checked_at": "2026-10-08",
      "provenance_pointer": "/metals/lead/assets[id=huoshaoyun-luopu-smelter]",
      "production_year": null,
      "production_effective_date": null,
      "production_observation_id": null,
      "production_selection_reason": "no_input_observation_for_metric",
      "capacity_period_start": null,
      "capacity_period_end": null,
      "capacity_year": null,
      "capacity_observation_id": "obs:5c0564ba5b11eef642a18fdd",
      "capacity_selection_reason": "single_explicit_input_observation",
      "source_keys": [
        "lead:cvg-huoshaoyun-design-2025",
        "lead:cvg-huoshaoyun-luopu-smelter",
        "lead:cvg-huoshaoyun-permit"
      ],
      "note_en": "2025 government report confirms design products of 560 kt zinc and 110 kt lead. The 600 kt project title is not a metal allocation. First zinc does not establish full ramp-up. Luopu smelter is separate from the mine.",
      "note_zh": "2025政府资料仍披露锌锭56万吨、铅锭11万吨设计规模。项目标题60万吨不作金属拆分；首批锌锭不等于全面达产。洛浦冶炼厂与火烧云矿山分开。",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "name_en": "Korea Zinc Onsan",
      "name_zh": "Korea Zinc 温山冶炼厂",
      "metal": "lead",
      "country_code": "KR",
      "production_value": 413721,
      "capacity_value": 430000,
      "production_unit": "t",
      "capacity_unit": "t/year",
      "production_period_start": "2025-01-01",
      "production_period_end": "2025-12-31",
      "capacity_effective_date": null,
      "layer": "processing",
      "entity_scope": "single_site",
      "production_basis": "refined_lead",
      "capacity_basis": "refined_lead",
      "production_ownership_basis": "project_100",
      "capacity_ownership_basis": "project_100",
      "project_key": "lead:onsan-korea-zinc",
      "asset_id": "onsan-korea-zinc",
      "operator": "Korea Zinc",
      "year": null,
      "ownership_basis": "project_100",
      "basis": "refined_lead",
      "moisture_basis": null,
      "data_status": "reported",
      "source_checked_at": "2026-10-08",
      "provenance_pointer": "/metals/lead/assets[id=onsan-korea-zinc]",
      "production_year": 2025,
      "production_effective_date": null,
      "production_observation_id": "obs:e644f014fae1031a92968f64",
      "production_selection_reason": "single_explicit_input_observation",
      "capacity_period_start": null,
      "capacity_period_end": null,
      "capacity_year": null,
      "capacity_observation_id": "obs:b34b0320ba60dbaba176dce7",
      "capacity_selection_reason": "single_explicit_input_observation",
      "source_keys": [
        "lead:cvg-kz-2025-krx"
      ],
      "note_en": "Corrected annual filing: parent Onsan site, excluding Australian Sun Metals. IR business-plan sales are not substituted for production.",
      "note_zh": "采用2025年报修订披露：母公司温山厂级口径；不含澳洲Sun Metals。IR业务计划实际数为销售口径，不替代产量。",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "name_en": "Huoshaoyun / Kunlun Luopu smelter",
      "name_zh": "火烧云／昆仑锌业洛浦冶炼厂",
      "metal": "zinc",
      "country_code": "CN",
      "production_value": null,
      "capacity_value": 560000,
      "production_unit": null,
      "capacity_unit": "t/year",
      "production_period_start": null,
      "production_period_end": null,
      "capacity_effective_date": null,
      "layer": "processing",
      "entity_scope": "single_site",
      "production_basis": null,
      "capacity_basis": "refined_zinc",
      "production_ownership_basis": null,
      "capacity_ownership_basis": "project_100",
      "project_key": "zinc:huoshaoyun-luopu-smelter",
      "asset_id": "huoshaoyun-luopu-smelter",
      "operator": "Xinjiang Kunlun Zinc",
      "year": null,
      "ownership_basis": "project_100",
      "basis": "refined_zinc",
      "moisture_basis": null,
      "data_status": "reported",
      "source_checked_at": "2026-10-08",
      "provenance_pointer": "/metals/zinc/assets[id=huoshaoyun-luopu-smelter]",
      "production_year": null,
      "production_effective_date": null,
      "production_observation_id": null,
      "production_selection_reason": "no_input_observation_for_metric",
      "capacity_period_start": null,
      "capacity_period_end": null,
      "capacity_year": null,
      "capacity_observation_id": "obs:79fc92e245399eb7c5ac017d",
      "capacity_selection_reason": "single_explicit_input_observation",
      "source_keys": [
        "zinc:cvg-huoshaoyun-design-2025",
        "zinc:cvg-huoshaoyun-luopu-smelter",
        "zinc:cvg-huoshaoyun-permit"
      ],
      "note_en": "2025 government report confirms design products of 560 kt zinc and 110 kt lead. The 600 kt project title is not a metal allocation. First zinc does not establish full ramp-up. Luopu smelter is separate from the mine.",
      "note_zh": "2025政府资料仍披露锌锭56万吨、铅锭11万吨设计规模。项目标题60万吨不作金属拆分；首批锌锭不等于全面达产。洛浦冶炼厂与火烧云矿山分开。",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "name_en": "Korea Zinc Onsan",
      "name_zh": "Korea Zinc 温山冶炼厂",
      "metal": "zinc",
      "country_code": "KR",
      "production_value": 600006,
      "capacity_value": 640000,
      "production_unit": "t",
      "capacity_unit": "t/year",
      "production_period_start": "2025-01-01",
      "production_period_end": "2025-12-31",
      "capacity_effective_date": null,
      "layer": "processing",
      "entity_scope": "single_site",
      "production_basis": "refined_zinc",
      "capacity_basis": "refined_zinc",
      "production_ownership_basis": "project_100",
      "capacity_ownership_basis": "project_100",
      "project_key": "zinc:onsan-korea-zinc",
      "asset_id": "onsan-korea-zinc",
      "operator": "Korea Zinc",
      "year": null,
      "ownership_basis": "project_100",
      "basis": "refined_zinc",
      "moisture_basis": null,
      "data_status": "reported",
      "source_checked_at": "2026-10-08",
      "provenance_pointer": "/metals/zinc/assets[id=onsan-korea-zinc]",
      "production_year": 2025,
      "production_effective_date": null,
      "production_observation_id": "obs:88931bac918a173210d3f727",
      "production_selection_reason": "single_explicit_input_observation",
      "capacity_period_start": null,
      "capacity_period_end": null,
      "capacity_year": null,
      "capacity_observation_id": "obs:be1c87c8c5b3897cd8d672e6",
      "capacity_selection_reason": "single_explicit_input_observation",
      "source_keys": [
        "zinc:cvg-kz-2025-krx"
      ],
      "note_en": "Corrected annual filing: parent Onsan site, excluding Australian Sun Metals. IR business-plan sales are not substituted for production.",
      "note_zh": "采用2025年报修订披露：母公司温山厂级口径；不含澳洲Sun Metals。IR业务计划实际数为销售口径，不替代产量。",
      "record_status": "commercially_approved",
      "distribution_ready": true
    }
  ],
  "observations": [
    {
      "name_en": "Huoshaoyun / Kunlun Luopu smelter",
      "metal": "lead",
      "country_code": "CN",
      "metric": "capacity",
      "value": 110000,
      "unit": "t/year",
      "period_start": null,
      "period_end": null,
      "observation_id": "obs:5c0564ba5b11eef642a18fdd",
      "project_key": "lead:huoshaoyun-luopu-smelter",
      "asset_id": "huoshaoyun-luopu-smelter",
      "name_zh": "火烧云／昆仑锌业洛浦冶炼厂",
      "layer": "processing",
      "year": null,
      "effective_date": null,
      "published_at": null,
      "basis": "refined_lead",
      "ownership_basis": "project_100",
      "entity_scope": "single_site",
      "moisture_basis": null,
      "source_precision_t": null,
      "source_keys": [
        "lead:cvg-huoshaoyun-design-2025",
        "lead:cvg-huoshaoyun-luopu-smelter",
        "lead:cvg-huoshaoyun-permit"
      ],
      "origin": "explicit_observation",
      "original_field": "observations",
      "unit_provenance": "explicit_observation.unit",
      "data_status": "reported",
      "derivation_kind": null,
      "value_status": "as_released",
      "null_reason": null,
      "provenance_pointer": "/metals/lead/assets[id=huoshaoyun-luopu-smelter]/observations",
      "note_en": "2025 government report confirms design products of 560 kt zinc and 110 kt lead. The 600 kt project title is not a metal allocation. First zinc does not establish full ramp-up. Luopu smelter is separate from the mine.",
      "note_zh": "2025政府资料仍披露锌锭56万吨、铅锭11万吨设计规模。项目标题60万吨不作金属拆分；首批锌锭不等于全面达产。洛浦冶炼厂与火烧云矿山分开。",
      "record_status": "commercially_approved",
      "distribution_ready": true,
      "declared_source_keys_json": "[\"lead:cvg-huoshaoyun-design-2025\",\"lead:cvg-huoshaoyun-luopu-smelter\",\"lead:cvg-huoshaoyun-permit\"]",
      "unresolved_source_keys_json": "[]",
      "unresolved_source_count": 0
    },
    {
      "name_en": "Huoshaoyun / Kunlun Luopu smelter",
      "metal": "zinc",
      "country_code": "CN",
      "metric": "capacity",
      "value": 560000,
      "unit": "t/year",
      "period_start": null,
      "period_end": null,
      "observation_id": "obs:79fc92e245399eb7c5ac017d",
      "project_key": "zinc:huoshaoyun-luopu-smelter",
      "asset_id": "huoshaoyun-luopu-smelter",
      "name_zh": "火烧云／昆仑锌业洛浦冶炼厂",
      "layer": "processing",
      "year": null,
      "effective_date": null,
      "published_at": null,
      "basis": "refined_zinc",
      "ownership_basis": "project_100",
      "entity_scope": "single_site",
      "moisture_basis": null,
      "source_precision_t": null,
      "source_keys": [
        "zinc:cvg-huoshaoyun-design-2025",
        "zinc:cvg-huoshaoyun-luopu-smelter",
        "zinc:cvg-huoshaoyun-permit"
      ],
      "origin": "explicit_observation",
      "original_field": "observations",
      "unit_provenance": "explicit_observation.unit",
      "data_status": "reported",
      "derivation_kind": null,
      "value_status": "as_released",
      "null_reason": null,
      "provenance_pointer": "/metals/zinc/assets[id=huoshaoyun-luopu-smelter]/observations",
      "note_en": "2025 government report confirms design products of 560 kt zinc and 110 kt lead. The 600 kt project title is not a metal allocation. First zinc does not establish full ramp-up. Luopu smelter is separate from the mine.",
      "note_zh": "2025政府资料仍披露锌锭56万吨、铅锭11万吨设计规模。项目标题60万吨不作金属拆分；首批锌锭不等于全面达产。洛浦冶炼厂与火烧云矿山分开。",
      "record_status": "commercially_approved",
      "distribution_ready": true,
      "declared_source_keys_json": "[\"zinc:cvg-huoshaoyun-design-2025\",\"zinc:cvg-huoshaoyun-luopu-smelter\",\"zinc:cvg-huoshaoyun-permit\"]",
      "unresolved_source_keys_json": "[]",
      "unresolved_source_count": 0
    },
    {
      "name_en": "Korea Zinc Onsan",
      "metal": "zinc",
      "country_code": "KR",
      "metric": "production",
      "value": 600006,
      "unit": "t",
      "period_start": "2025-01-01",
      "period_end": "2025-12-31",
      "observation_id": "obs:88931bac918a173210d3f727",
      "project_key": "zinc:onsan-korea-zinc",
      "asset_id": "onsan-korea-zinc",
      "name_zh": "Korea Zinc 温山冶炼厂",
      "layer": "processing",
      "year": 2025,
      "effective_date": null,
      "published_at": null,
      "basis": "refined_zinc",
      "ownership_basis": "project_100",
      "entity_scope": "single_site",
      "moisture_basis": null,
      "source_precision_t": null,
      "source_keys": [
        "zinc:cvg-kz-2025-krx"
      ],
      "origin": "explicit_observation",
      "original_field": "observations",
      "unit_provenance": "explicit_observation.unit",
      "data_status": "reported",
      "derivation_kind": null,
      "value_status": "as_released",
      "null_reason": null,
      "provenance_pointer": "/metals/zinc/assets[id=onsan-korea-zinc]/observations",
      "note_en": "Corrected annual filing: parent Onsan site, excluding Australian Sun Metals. IR business-plan sales are not substituted for production.",
      "note_zh": "采用2025年报修订披露：母公司温山厂级口径；不含澳洲Sun Metals。IR业务计划实际数为销售口径，不替代产量。",
      "record_status": "commercially_approved",
      "distribution_ready": true,
      "declared_source_keys_json": "[\"zinc:cvg-kz-2025-krx\"]",
      "unresolved_source_keys_json": "[]",
      "unresolved_source_count": 0
    },
    {
      "name_en": "Korea Zinc Onsan",
      "metal": "lead",
      "country_code": "KR",
      "metric": "capacity",
      "value": 430000,
      "unit": "t/year",
      "period_start": null,
      "period_end": null,
      "observation_id": "obs:b34b0320ba60dbaba176dce7",
      "project_key": "lead:onsan-korea-zinc",
      "asset_id": "onsan-korea-zinc",
      "name_zh": "Korea Zinc 温山冶炼厂",
      "layer": "processing",
      "year": null,
      "effective_date": null,
      "published_at": null,
      "basis": "refined_lead",
      "ownership_basis": "project_100",
      "entity_scope": "single_site",
      "moisture_basis": null,
      "source_precision_t": null,
      "source_keys": [
        "lead:cvg-kz-2025-krx"
      ],
      "origin": "explicit_observation",
      "original_field": "observations",
      "unit_provenance": "explicit_observation.unit",
      "data_status": "reported",
      "derivation_kind": null,
      "value_status": "as_released",
      "null_reason": null,
      "provenance_pointer": "/metals/lead/assets[id=onsan-korea-zinc]/observations",
      "note_en": "Corrected annual filing: parent Onsan site, excluding Australian Sun Metals. IR business-plan sales are not substituted for production.",
      "note_zh": "采用2025年报修订披露：母公司温山厂级口径；不含澳洲Sun Metals。IR业务计划实际数为销售口径，不替代产量。",
      "record_status": "commercially_approved",
      "distribution_ready": true,
      "declared_source_keys_json": "[\"lead:cvg-kz-2025-krx\"]",
      "unresolved_source_keys_json": "[]",
      "unresolved_source_count": 0
    },
    {
      "name_en": "Korea Zinc Onsan",
      "metal": "zinc",
      "country_code": "KR",
      "metric": "capacity",
      "value": 640000,
      "unit": "t/year",
      "period_start": null,
      "period_end": null,
      "observation_id": "obs:be1c87c8c5b3897cd8d672e6",
      "project_key": "zinc:onsan-korea-zinc",
      "asset_id": "onsan-korea-zinc",
      "name_zh": "Korea Zinc 温山冶炼厂",
      "layer": "processing",
      "year": null,
      "effective_date": null,
      "published_at": null,
      "basis": "refined_zinc",
      "ownership_basis": "project_100",
      "entity_scope": "single_site",
      "moisture_basis": null,
      "source_precision_t": null,
      "source_keys": [
        "zinc:cvg-kz-2025-krx"
      ],
      "origin": "explicit_observation",
      "original_field": "observations",
      "unit_provenance": "explicit_observation.unit",
      "data_status": "reported",
      "derivation_kind": null,
      "value_status": "as_released",
      "null_reason": null,
      "provenance_pointer": "/metals/zinc/assets[id=onsan-korea-zinc]/observations",
      "note_en": "Corrected annual filing: parent Onsan site, excluding Australian Sun Metals. IR business-plan sales are not substituted for production.",
      "note_zh": "采用2025年报修订披露：母公司温山厂级口径；不含澳洲Sun Metals。IR业务计划实际数为销售口径，不替代产量。",
      "record_status": "commercially_approved",
      "distribution_ready": true,
      "declared_source_keys_json": "[\"zinc:cvg-kz-2025-krx\"]",
      "unresolved_source_keys_json": "[]",
      "unresolved_source_count": 0
    },
    {
      "name_en": "Korea Zinc Onsan",
      "metal": "lead",
      "country_code": "KR",
      "metric": "production",
      "value": 413721,
      "unit": "t",
      "period_start": "2025-01-01",
      "period_end": "2025-12-31",
      "observation_id": "obs:e644f014fae1031a92968f64",
      "project_key": "lead:onsan-korea-zinc",
      "asset_id": "onsan-korea-zinc",
      "name_zh": "Korea Zinc 温山冶炼厂",
      "layer": "processing",
      "year": 2025,
      "effective_date": null,
      "published_at": null,
      "basis": "refined_lead",
      "ownership_basis": "project_100",
      "entity_scope": "single_site",
      "moisture_basis": null,
      "source_precision_t": null,
      "source_keys": [
        "lead:cvg-kz-2025-krx"
      ],
      "origin": "explicit_observation",
      "original_field": "observations",
      "unit_provenance": "explicit_observation.unit",
      "data_status": "reported",
      "derivation_kind": null,
      "value_status": "as_released",
      "null_reason": null,
      "provenance_pointer": "/metals/lead/assets[id=onsan-korea-zinc]/observations",
      "note_en": "Corrected annual filing: parent Onsan site, excluding Australian Sun Metals. IR business-plan sales are not substituted for production.",
      "note_zh": "采用2025年报修订披露：母公司温山厂级口径；不含澳洲Sun Metals。IR业务计划实际数为销售口径，不替代产量。",
      "record_status": "commercially_approved",
      "distribution_ready": true,
      "declared_source_keys_json": "[\"lead:cvg-kz-2025-krx\"]",
      "unresolved_source_keys_json": "[]",
      "unresolved_source_count": 0
    }
  ],
  "sources": [
    {
      "source_key": "lead:cvg-huoshaoyun-design-2025",
      "metal": "lead",
      "source_id": "cvg-huoshaoyun-design-2025",
      "title": "Xinjiang Finance Department: smelter power supply completed",
      "url": "https://czt.xinjiang.gov.cn/xjczt/c115018/202510/fc6ec55a1cbf44bb94d23bc5bea40477.shtml",
      "source_class": "government_statistics",
      "license_class": "government_statistics",
      "issuer": "Xinjiang Finance Department: smelter power supply completed",
      "locator": "Design output after ramp-up: 560 kt zinc ingots and 110 kt lead ingots; 2.5 Mt ore/year",
      "published_at": null,
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "source_key": "lead:cvg-huoshaoyun-luopu-smelter",
      "metal": "lead",
      "source_id": "cvg-huoshaoyun-luopu-smelter",
      "title": "ENFI: Huoshaoyun EPC contract",
      "url": "https://www.enfi.com.cn/gyef/xwdt/sckt/202312/t20231228_56871.html",
      "source_class": "company_disclosure",
      "license_class": "company_disclosure",
      "issuer": "ENFI: Huoshaoyun EPC contract",
      "locator": "Design products: 560 kt zinc ingots and 110 kt lead ingots/year",
      "published_at": "2023-12-28",
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "source_key": "lead:cvg-huoshaoyun-permit",
      "metal": "lead",
      "source_id": "cvg-huoshaoyun-permit",
      "title": "Xinjiang EIA approval: Huoshaoyun Pb/Zn smelter",
      "url": "https://sthjt.xinjiang.gov.cn/xjepd/gwwjhpyb/202409/271e9c2023f04b79a65692b9edb86cf4.shtml",
      "source_class": "government_statistics",
      "license_class": "government_statistics",
      "issuer": "Xinjiang EIA approval: Huoshaoyun Pb/Zn smelter",
      "locator": "Approval section1: Luopu site coordinates, project identity",
      "published_at": "2024-07-25",
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "source_key": "lead:cvg-kz-2025-krx",
      "metal": "lead",
      "source_id": "cvg-kz-2025-krx",
      "title": "Korea Zinc 2025 Annual Report (corrected KRX filing)",
      "url": "https://kind.krx.co.kr/external/2026/06/01/001527/20260601002466/11011.htm",
      "source_class": "company_disclosure",
      "license_class": "company_disclosure",
      "issuer": "Korea Zinc 2025 Annual Report (corrected KRX filing)",
      "locator": "II. Business / Production and facilities: parent Onsan smelter, capacity and 2025 actual production tables",
      "published_at": "2026-06-01",
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "source_key": "zinc:cvg-huoshaoyun-design-2025",
      "metal": "zinc",
      "source_id": "cvg-huoshaoyun-design-2025",
      "title": "Xinjiang Finance Department: smelter power supply completed",
      "url": "https://czt.xinjiang.gov.cn/xjczt/c115018/202510/fc6ec55a1cbf44bb94d23bc5bea40477.shtml",
      "source_class": "government_statistics",
      "license_class": "government_statistics",
      "issuer": "Xinjiang Finance Department: smelter power supply completed",
      "locator": "Design output after ramp-up: 560 kt zinc ingots and 110 kt lead ingots; 2.5 Mt ore/year",
      "published_at": null,
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "source_key": "zinc:cvg-huoshaoyun-luopu-smelter",
      "metal": "zinc",
      "source_id": "cvg-huoshaoyun-luopu-smelter",
      "title": "ENFI: Huoshaoyun EPC contract",
      "url": "https://www.enfi.com.cn/gyef/xwdt/sckt/202312/t20231228_56871.html",
      "source_class": "company_disclosure",
      "license_class": "company_disclosure",
      "issuer": "ENFI: Huoshaoyun EPC contract",
      "locator": "Design products: 560 kt zinc ingots and 110 kt lead ingots/year",
      "published_at": "2023-12-28",
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "source_key": "zinc:cvg-huoshaoyun-permit",
      "metal": "zinc",
      "source_id": "cvg-huoshaoyun-permit",
      "title": "Xinjiang EIA approval: Huoshaoyun Pb/Zn smelter",
      "url": "https://sthjt.xinjiang.gov.cn/xjepd/gwwjhpyb/202409/271e9c2023f04b79a65692b9edb86cf4.shtml",
      "source_class": "government_statistics",
      "license_class": "government_statistics",
      "issuer": "Xinjiang EIA approval: Huoshaoyun Pb/Zn smelter",
      "locator": "Approval section1: Luopu site coordinates, project identity",
      "published_at": "2024-07-25",
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "source_key": "zinc:cvg-kz-2025-krx",
      "metal": "zinc",
      "source_id": "cvg-kz-2025-krx",
      "title": "Korea Zinc 2025 Annual Report (corrected KRX filing)",
      "url": "https://kind.krx.co.kr/external/2026/06/01/001527/20260601002466/11011.htm",
      "source_class": "company_disclosure",
      "license_class": "company_disclosure",
      "issuer": "Korea Zinc 2025 Annual Report (corrected KRX filing)",
      "locator": "II. Business / Production and facilities: parent Onsan smelter, capacity and 2025 actual production tables",
      "published_at": "2026-06-01",
      "checked_at": "2026-10-08",
      "reference_status": "allowed_primary_or_official_reference",
      "classification_provenance": "commercial_review_inventory_exact_url_match",
      "record_status": "commercially_approved",
      "distribution_ready": true
    }
  ],
  "dictionary": [
    {
      "table": "projects",
      "field": "name_en",
      "type": "string",
      "nullable": true,
      "description_en": "Input name en; null means unknown or unavailable.",
      "description_zh": "输入字段name_en；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "name_zh",
      "type": "string",
      "nullable": true,
      "description_en": "Input name zh; null means unknown or unavailable.",
      "description_zh": "输入字段name_zh；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "metal",
      "type": "string",
      "nullable": false,
      "description_en": "Input metal; null means unknown or unavailable.",
      "description_zh": "输入字段metal；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): aluminium | copper | iron-ore | lead | lithium | nickel | tin | zinc",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "country_code",
      "type": "string",
      "nullable": true,
      "description_en": "Input country code; null means unknown or unavailable.",
      "description_zh": "输入字段country_code；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_value",
      "type": "number",
      "nullable": true,
      "description_en": "Original quantity; null if unknown or without an allowed primary/official reference; no conversion.",
      "description_zh": "原数量；未知或缺少可解析一手／官方出处时为空；不换算。",
      "unit_or_enum": "source-specific; no conversion",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_value",
      "type": "number",
      "nullable": true,
      "description_en": "Original quantity; null if unknown or without an allowed primary/official reference; no conversion.",
      "description_zh": "原数量；未知或缺少可解析一手／官方出处时为空；不换算。",
      "unit_or_enum": "source-specific; no conversion",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_unit",
      "type": "string",
      "nullable": true,
      "description_en": "Input unit; null means unknown or unavailable.",
      "description_zh": "输入字段unit；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): t",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_unit",
      "type": "string",
      "nullable": true,
      "description_en": "Input unit; null means unknown or unavailable.",
      "description_zh": "输入字段unit；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): t | t/year",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_period_start",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_period_end",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_effective_date",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "layer",
      "type": "string",
      "nullable": true,
      "description_en": "Input layer; null means unknown or unavailable.",
      "description_zh": "输入字段layer；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): alumina | bauxite | brine | capacity | ferronickel | hardrock | intermediate | mine | primary | processing | refined",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "entity_scope",
      "type": "string",
      "nullable": true,
      "description_en": "Input entity scope, null when absent; never inferred from names, operators or co-location.",
      "description_zh": "保留输入实体范围；未提供则为空，不按名称、运营商或共址推断。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): operating_system | operator_group | single_site",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input basis; null means unknown or unavailable.",
      "description_zh": "输入字段basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): bauxite_moisture_unspecified | bauxite_wet | contained_copper | contained_lead | contained_nickel | contained_tin | contained_zinc | copper_cathode | ferronickel_nickel | fine_copper | intermediate_nickel | iron_ore_product | lead_processing | lithium_carbonate_equivalent | lithium_hydroxide | net_finished_aluminium | nickel_contained_in_mhp | nickel_contained_in_npi | pellets_and_iron_ore_fines | primary_aluminium | recoverable_copper | refined_lead | refined_tin | refined_zinc | reported_alumina | smelter_grade_alumina | spodumene_concentrate | tin_contained_in_concentrate | zinc_processing",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input basis; null means unknown or unavailable.",
      "description_zh": "输入字段basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): alumina | anode | bauxite_ore_moisture_unspecified | cathode | copper_cathode | electrolytic_nickel | iron_bridge_concentrate_nameplate | iron_ore_concentrate_design | lead_processing | lithium_carbonate_design | lithium_carbonate_equivalent | lithium_carbonate_project_design | nickel_contained_in_ferronickel | nickel_contained_in_mhp | ore_mining_and_processing | primary_aluminium | primary_aluminium_and_alloys | recycled_lead | refined_lead | refined_tin_declared_maximum | refined_zinc | zinc_ingot | zinc_processing",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_ownership_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input ownership basis; null means unknown or unavailable.",
      "description_zh": "输入字段ownership_basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): operating_system | operator_group | project_100 | project_100_pending",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_ownership_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input ownership basis; null means unknown or unavailable.",
      "description_zh": "输入字段ownership_basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): facility_nameplate | operating_system | operator_group | project_100",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "project_key",
      "type": "string",
      "nullable": false,
      "description_en": "Stable metal:asset_id registration key; shared IDs do not identify unique physical sites.",
      "description_zh": "稳定金属:项目编号登记键；共享编号不代表独立厂址。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "asset_id",
      "type": "string",
      "nullable": true,
      "description_en": "Input asset id; null means unknown or unavailable.",
      "description_zh": "输入字段asset_id；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "operator",
      "type": "string",
      "nullable": true,
      "description_en": "Input operator; null means unknown or unavailable.",
      "description_zh": "输入字段operator；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "year",
      "type": "integer",
      "nullable": true,
      "description_en": "Original reported year; can be a fiscal-year label. It does not manufacture full-year dates.",
      "description_zh": "原报告年度，可能为财年标签；不据此补造全年日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "ownership_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input ownership basis; null means unknown or unavailable.",
      "description_zh": "输入字段ownership_basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): facility_nameplate | operating_system | operator_group | project_100 | project_100_pending",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input basis; null means unknown or unavailable.",
      "description_zh": "输入字段basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): alumina | anode | bauxite_moisture_unspecified | bauxite_ore_moisture_unspecified | bauxite_wet | cathode | contained_copper | contained_lead | contained_nickel | contained_tin | contained_zinc | copper_cathode | electrolytic_nickel | ferronickel_nickel | fine_copper | intermediate_nickel | iron_ore_concentrate | iron_ore_concentrate_design | iron_ore_product | iron_ore_shipments | lead_processing | lithium_carbonate_design | lithium_carbonate_equivalent | lithium_carbonate_project_design | lithium_hydroxide | net_finished_aluminium | nickel_contained_in_ferronickel | nickel_contained_in_mhp | nickel_contained_in_npi | ore_mining_and_processing | ore_processed_wmt | pellets_and_iron_ore_fines | primary_aluminium | primary_aluminium_and_alloys | recoverable_copper | recycled_lead | refined_lead | refined_tin | refined_tin_declared_maximum | refined_zinc | reported_alumina | smelter_grade_alumina | spodumene_concentrate | tin_contained_in_concentrate | unverified | zinc_ingot | zinc_processing",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "moisture_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input moisture basis; null means unknown or unavailable.",
      "description_zh": "输入字段moisture_basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): not_stated | wet",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "data_status",
      "type": "string",
      "nullable": true,
      "description_en": "Input data status; null means unknown or unavailable.",
      "description_zh": "输入字段data_status；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): capacity | derived | pending | period_sum | preliminary | release_snapshot | reported | reported_rounded | unknown",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "source_checked_at",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "provenance_pointer",
      "type": "string",
      "nullable": true,
      "description_en": "Logical pointer within the extracted input, with asset ID instead of positional index; no local path.",
      "description_zh": "提取输入中的逻辑定位，用项目编号代替数组位置，不含本地路径。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_year",
      "type": "integer",
      "nullable": true,
      "description_en": "Original reported year; can be a fiscal-year label. It does not manufacture full-year dates.",
      "description_zh": "原报告年度，可能为财年标签；不据此补造全年日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_effective_date",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_observation_id",
      "type": "string",
      "nullable": true,
      "description_en": "Content SHA-256 identifier, independent of array order.",
      "description_zh": "按内容生成SHA-256标识，不依赖数组顺序。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "production_selection_reason",
      "type": "string",
      "nullable": true,
      "description_en": "One input observation for this metric with a retained quantity is selected; multiple candidates stay blank, without latest inference.",
      "description_zh": "该指标仅有一条且数量可保留时选入；存在多条则留空，不推断最新。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): no_input_observation_for_metric | quantity_not_disclosed_in_input | single_explicit_input_observation | single_legacy_summary_not_independently_revalidated",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_period_start",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_period_end",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_year",
      "type": "integer",
      "nullable": true,
      "description_en": "Original reported year; can be a fiscal-year label. It does not manufacture full-year dates.",
      "description_zh": "原报告年度，可能为财年标签；不据此补造全年日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_observation_id",
      "type": "string",
      "nullable": true,
      "description_en": "Content SHA-256 identifier, independent of array order.",
      "description_zh": "按内容生成SHA-256标识，不依赖数组顺序。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "capacity_selection_reason",
      "type": "string",
      "nullable": true,
      "description_en": "One input observation for this metric with a retained quantity is selected; multiple candidates stay blank, without latest inference.",
      "description_zh": "该指标仅有一条且数量可保留时选入；存在多条则留空，不推断最新。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): no_input_observation_for_metric | quantity_not_disclosed_in_input | single_explicit_input_observation | single_legacy_summary_not_independently_revalidated",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "source_keys",
      "type": "array[string]",
      "nullable": true,
      "description_en": "Namespaced references; JSON string array in CSV, array in JSON. Class does not grant commercial clearance.",
      "description_zh": "带金属命名空间的出处；CSV用JSON数组字符串，JSON用数组；来源分类不代表商业许可。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "note_en",
      "type": "string",
      "nullable": true,
      "description_en": "Input note en; null means unknown or unavailable.",
      "description_zh": "输入字段note_en；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "note_zh",
      "type": "string",
      "nullable": true,
      "description_en": "Input note zh; null means unknown or unavailable.",
      "description_zh": "输入字段note_zh；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "record_status",
      "type": "string",
      "nullable": false,
      "description_en": "Release status of every row: commercially_approved for this standard data pack.",
      "description_zh": "每行的发布状态：本标准数据包全部为commercially_approved。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): commercially_approved",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "projects",
      "field": "distribution_ready",
      "type": "boolean",
      "nullable": false,
      "description_en": "Always true in this release.",
      "description_zh": "本发布版恒为true。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "name_en",
      "type": "string",
      "nullable": true,
      "description_en": "Input name en; null means unknown or unavailable.",
      "description_zh": "输入字段name_en；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "metal",
      "type": "string",
      "nullable": false,
      "description_en": "Input metal; null means unknown or unavailable.",
      "description_zh": "输入字段metal；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): aluminium | copper | iron-ore | lead | lithium | nickel | tin | zinc",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "country_code",
      "type": "string",
      "nullable": true,
      "description_en": "Input country code; null means unknown or unavailable.",
      "description_zh": "输入字段country_code；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "metric",
      "type": "string",
      "nullable": true,
      "description_en": "Input metric; null means unknown or unavailable.",
      "description_zh": "输入字段metric；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): capacity | ore_processed | production | proposed_capacity | shipments",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "value",
      "type": "number",
      "nullable": true,
      "description_en": "Original quantity; null if unknown or without an allowed primary/official reference; no conversion.",
      "description_zh": "原数量；未知或缺少可解析一手／官方出处时为空；不换算。",
      "unit_or_enum": "source-specific; no conversion",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "unit",
      "type": "string",
      "nullable": true,
      "description_en": "Input unit; null means unknown or unavailable.",
      "description_zh": "输入字段unit；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): t | t/year",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "period_start",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "period_end",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "observation_id",
      "type": "string",
      "nullable": false,
      "description_en": "Content SHA-256 identifier, independent of array order.",
      "description_zh": "按内容生成SHA-256标识，不依赖数组顺序。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "project_key",
      "type": "string",
      "nullable": false,
      "description_en": "Stable metal:asset_id registration key; shared IDs do not identify unique physical sites.",
      "description_zh": "稳定金属:项目编号登记键；共享编号不代表独立厂址。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "asset_id",
      "type": "string",
      "nullable": true,
      "description_en": "Input asset id; null means unknown or unavailable.",
      "description_zh": "输入字段asset_id；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "name_zh",
      "type": "string",
      "nullable": true,
      "description_en": "Input name zh; null means unknown or unavailable.",
      "description_zh": "输入字段name_zh；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "layer",
      "type": "string",
      "nullable": true,
      "description_en": "Input layer; null means unknown or unavailable.",
      "description_zh": "输入字段layer；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): alumina | bauxite | brine | capacity | ferronickel | hardrock | intermediate | mine | primary | processing | refined",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "year",
      "type": "integer",
      "nullable": true,
      "description_en": "Original reported year; can be a fiscal-year label. It does not manufacture full-year dates.",
      "description_zh": "原报告年度，可能为财年标签；不据此补造全年日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "effective_date",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "published_at",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input basis; null means unknown or unavailable.",
      "description_zh": "输入字段basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): alumina | anode | bauxite_moisture_unspecified | bauxite_ore_moisture_unspecified | bauxite_wet | cathode | contained_copper | contained_lead | contained_nickel | contained_tin | contained_zinc | copper_cathode | electrolytic_nickel | ferronickel_nickel | fine_copper | intermediate_nickel | iron_bridge_concentrate_nameplate | iron_ore_concentrate | iron_ore_concentrate_design | iron_ore_product | iron_ore_shipments | lead_processing | lithium_carbonate | lithium_carbonate_design | lithium_carbonate_equivalent | lithium_carbonate_project_design | lithium_hydroxide | net_finished_aluminium | nickel_contained_in_ferronickel | nickel_contained_in_mhp | nickel_contained_in_npi | ore_mining_and_processing | ore_processed_wmt | ore_shipped_wmt | pellets_and_iron_ore_fines | primary_aluminium | primary_aluminium_and_alloys | recoverable_copper | recycled_lead | refined_lead | refined_tin | refined_tin_declared_maximum | refined_zinc | reported_alumina | smelter_grade_alumina | spodumene_concentrate | tin_contained_in_concentrate | zinc_ingot | zinc_processing",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "ownership_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input ownership basis; null means unknown or unavailable.",
      "description_zh": "输入字段ownership_basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): facility_nameplate | operating_system | operator_group | project_100 | project_100_pending",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "entity_scope",
      "type": "string",
      "nullable": true,
      "description_en": "Input entity scope, null when absent; never inferred from names, operators or co-location.",
      "description_zh": "保留输入实体范围；未提供则为空，不按名称、运营商或共址推断。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): operating_system | operator_group | single_site",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "moisture_basis",
      "type": "string",
      "nullable": true,
      "description_en": "Input moisture basis; null means unknown or unavailable.",
      "description_zh": "输入字段moisture_basis；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): not_stated | wet",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "source_precision_t",
      "type": "number",
      "nullable": true,
      "description_en": "Input source precision t; null means unknown or unavailable.",
      "description_zh": "输入字段source_precision_t；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "source_keys",
      "type": "array[string]",
      "nullable": true,
      "description_en": "Namespaced references; JSON string array in CSV, array in JSON. Class does not grant commercial clearance.",
      "description_zh": "带金属命名空间的出处；CSV用JSON数组字符串，JSON用数组；来源分类不代表商业许可。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "origin",
      "type": "string",
      "nullable": true,
      "description_en": "explicit_observation or legacy_summary; the latter is not a separately verified measurement.",
      "description_zh": "explicit_observation或legacy_summary；后者不是单独复核的测量。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): explicit_observation | legacy_summary",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "original_field",
      "type": "string",
      "nullable": true,
      "description_en": "Input original field; null means unknown or unavailable.",
      "description_zh": "输入字段original_field；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "unit_provenance",
      "type": "string",
      "nullable": true,
      "description_en": "Explicit unit or legacy field suffix t; annual capacity unit is not inferred for legacy fields.",
      "description_zh": "明确单位或旧字段后缀t；不推断旧产能字段的年化单位。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "data_status",
      "type": "string",
      "nullable": true,
      "description_en": "Input data status; null means unknown or unavailable.",
      "description_zh": "输入字段data_status；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): capacity | derived | period_sum | preliminary | release_snapshot | reported | reported_rounded | unknown",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "derivation_kind",
      "type": "string",
      "nullable": true,
      "description_en": "Input derivation kind; null means unknown or unavailable.",
      "description_zh": "输入字段derivation_kind；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "value_status",
      "type": "string",
      "nullable": true,
      "description_en": "Release value status. as_released: value carried unchanged from the reviewed input observation.",
      "description_zh": "发行值状态。as_released：取值与已审核的输入观测一致，未作改动。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): as_released | unknown",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "null_reason",
      "type": "string",
      "nullable": true,
      "description_en": "Input null reason; null means unknown or unavailable.",
      "description_zh": "输入字段null_reason；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): quantity_not_disclosed_in_input",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "provenance_pointer",
      "type": "string",
      "nullable": true,
      "description_en": "Logical pointer within the extracted input, with asset ID instead of positional index; no local path.",
      "description_zh": "提取输入中的逻辑定位，用项目编号代替数组位置，不含本地路径。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "note_en",
      "type": "string",
      "nullable": true,
      "description_en": "Input note en; null means unknown or unavailable.",
      "description_zh": "输入字段note_en；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "note_zh",
      "type": "string",
      "nullable": true,
      "description_en": "Input note zh; null means unknown or unavailable.",
      "description_zh": "输入字段note_zh；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "record_status",
      "type": "string",
      "nullable": false,
      "description_en": "Release status of every row: commercially_approved for this standard data pack.",
      "description_zh": "每行的发布状态：本标准数据包全部为commercially_approved。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): commercially_approved",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "distribution_ready",
      "type": "boolean",
      "nullable": false,
      "description_en": "Always true in this release.",
      "description_zh": "本发布版恒为true。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "declared_source_keys_json",
      "type": "string",
      "nullable": true,
      "description_en": "Scalar JSON text listing every declared source key; includes unresolved provenance identifiers, never restricted quantities or documents.",
      "description_zh": "标量JSON文本，保留所有声明的来源编号，包括未解决的血缘标识；不包含受限数量或原件。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "unresolved_source_keys_json",
      "type": "string",
      "nullable": true,
      "description_en": "Scalar JSON text listing missing/disallowed declared references; any such reference withholds the quantity.",
      "description_zh": "标量JSON文本，列出缺失／不允许的声明出处；存在任何此类出处时数量留空。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "observations",
      "field": "unresolved_source_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Number of declared sources not resolved to allowed primary/official URLs.",
      "description_zh": "未解析为允许一手／官方URL的声明出处数。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "source_key",
      "type": "string",
      "nullable": false,
      "description_en": "Input source key; null means unknown or unavailable.",
      "description_zh": "输入字段source_key；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "metal",
      "type": "string",
      "nullable": false,
      "description_en": "Input metal; null means unknown or unavailable.",
      "description_zh": "输入字段metal；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): aluminium | copper | iron-ore | lead | lithium | nickel | tin | zinc",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "source_id",
      "type": "string",
      "nullable": true,
      "description_en": "Input source id; null means unknown or unavailable.",
      "description_zh": "输入字段source_id；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "title",
      "type": "string",
      "nullable": true,
      "description_en": "Input title; null means unknown or unavailable.",
      "description_zh": "输入字段title；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "url",
      "type": "string",
      "nullable": true,
      "description_en": "Input url; null means unknown or unavailable.",
      "description_zh": "输入字段url；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "source_class",
      "type": "string",
      "nullable": true,
      "description_en": "Input source class; null means unknown or unavailable.",
      "description_zh": "输入字段source_class；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): company_disclosure | government_original | government_statistics | issuer_original | issuer_report | operator_report | operator_webpage | primary | primary_disclosure",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "license_class",
      "type": "string",
      "nullable": true,
      "description_en": "Input license class; null means unknown or unavailable.",
      "description_zh": "输入字段license_class；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): company_disclosure | government_statistics",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "issuer",
      "type": "string",
      "nullable": true,
      "description_en": "Input issuer; null means unknown or unavailable.",
      "description_zh": "输入字段issuer；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "locator",
      "type": "string",
      "nullable": true,
      "description_en": "Input locator; null means unknown or unavailable.",
      "description_zh": "输入字段locator；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "published_at",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "checked_at",
      "type": "string",
      "nullable": true,
      "description_en": "Input date at disclosed precision; unknown stays null. Capacity dates never inherit production dates.",
      "description_zh": "按原披露精度保留日期，未知为空；产能日期不继承产量日期。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "reference_status",
      "type": "string",
      "nullable": true,
      "description_en": "Input reference status; null means unknown or unavailable.",
      "description_zh": "输入字段reference_status；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): allowed_primary_or_official_reference",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "classification_provenance",
      "type": "string",
      "nullable": true,
      "description_en": "How the source class was assigned: exact-URL match against the reviewed source inventory.",
      "description_zh": "来源类别的判定方式：与已审核来源清单按完整 URL 精确匹配。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "record_status",
      "type": "string",
      "nullable": false,
      "description_en": "Release status of every row: commercially_approved for this standard data pack.",
      "description_zh": "每行的发布状态：本标准数据包全部为commercially_approved。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): commercially_approved",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "sources",
      "field": "distribution_ready",
      "type": "boolean",
      "nullable": false,
      "description_en": "Always true in this release.",
      "description_zh": "本发布版恒为true。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "metal",
      "type": "string",
      "nullable": false,
      "description_en": "Input metal; null means unknown or unavailable.",
      "description_zh": "输入字段metal；空值代表未知或缺失。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): ",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "project_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input project count; null means unknown or unavailable.",
      "description_zh": "输入字段project_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "observation_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input observation count; null means unknown or unavailable.",
      "description_zh": "输入字段observation_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "explicit_observation_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input explicit observation count; null means unknown or unavailable.",
      "description_zh": "输入字段explicit_observation_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "legacy_summary_observation_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input legacy summary observation count; null means unknown or unavailable.",
      "description_zh": "输入字段legacy_summary_observation_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "numeric_observation_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input numeric observation count; null means unknown or unavailable.",
      "description_zh": "输入字段numeric_observation_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "null_observation_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input null observation count; null means unknown or unavailable.",
      "description_zh": "输入字段null_observation_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "unknown_entity_scope_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input unknown entity scope count; null means unknown or unavailable.",
      "description_zh": "输入字段unknown_entity_scope_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "projects_without_sources_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input projects without sources count; null means unknown or unavailable.",
      "description_zh": "输入字段projects_without_sources_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "production_summary_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input production summary count; null means unknown or unavailable.",
      "description_zh": "输入字段production_summary_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "capacity_summary_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input capacity summary count; null means unknown or unavailable.",
      "description_zh": "输入字段capacity_summary_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "source_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input source count; null means unknown or unavailable.",
      "description_zh": "输入字段source_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "commercially_approved_record_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Input commercially approved record count; null means unknown or unavailable.",
      "description_zh": "输入字段commercially_approved_record_count；空值代表未知或缺失。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "physical_site_count",
      "type": "integer",
      "nullable": true,
      "description_en": "Unknown; project-metal registrations cannot be treated as unique sites.",
      "description_zh": "未知；项目金属登记项不能直接当作独立厂址。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "record_status",
      "type": "string",
      "nullable": false,
      "description_en": "Release status of every row: commercially_approved for this standard data pack.",
      "description_zh": "每行的发布状态：本标准数据包全部为commercially_approved。",
      "unit_or_enum": "Observed values (not an exhaustive future enum): commercially_approved",
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    },
    {
      "table": "coverage",
      "field": "distribution_ready",
      "type": "boolean",
      "nullable": false,
      "description_en": "Always true in this release.",
      "description_zh": "本发布版恒为true。",
      "unit_or_enum": null,
      "provenance": "input observation/legacy field with source_keys; source classes from the reviewed source inventory (exact-URL match); released 2026-10-10 under the independent factual-compilation basis"
    }
  ],
  "coverage": [
    {
      "metal": "lead",
      "project_count": 2,
      "observation_count": 3,
      "explicit_observation_count": 3,
      "legacy_summary_observation_count": 0,
      "numeric_observation_count": 3,
      "null_observation_count": 0,
      "unknown_entity_scope_count": 0,
      "projects_without_sources_count": 0,
      "production_summary_count": 1,
      "capacity_summary_count": 2,
      "source_count": 4,
      "commercially_approved_record_count": 2,
      "physical_site_count": null,
      "record_status": "commercially_approved",
      "distribution_ready": true
    },
    {
      "metal": "zinc",
      "project_count": 2,
      "observation_count": 3,
      "explicit_observation_count": 3,
      "legacy_summary_observation_count": 0,
      "numeric_observation_count": 3,
      "null_observation_count": 0,
      "unknown_entity_scope_count": 0,
      "projects_without_sources_count": 0,
      "production_summary_count": 1,
      "capacity_summary_count": 2,
      "source_count": 4,
      "commercially_approved_record_count": 2,
      "physical_site_count": null,
      "record_status": "commercially_approved",
      "distribution_ready": true
    }
  ]
}