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Copper supply update / Historical sample

Six disclosures.
Three research updates.

A withdrawn forecast needs a blank value. A transport restart belongs in logistics. A commissioned expansion belongs under its parent project. Here is how those distinctions translate into changes to your working table.

Selected disclosures: May 2025–January 2026
Prepared and checked: 14 October 2026. A retrospective sample, not a current-status or complete monthly monitoring report.

01 / KAMOA-KAKULA · CU-001–003

Guidance returns after withdrawal; mining resumes on the western side

Ivanhoe withdrew Kamoa-Kakula’s 2025 production guidance on 26 May. On 11 June, it issued a new range of 370,000–420,000 tonnes and reported that underground mining on Kakula’s western side had restarted on 7 June.

Keep the original 520,000–580,000-tonne range in the history. The active numeric value during withdrawal is blank. A western-side restart does not establish a full restart of the complex.

Update your working tableMaintain three separate fields: guidance status, active range and affected-area operating status. Keep eastern access and dewatering on the watchlist. Do not count successive guidance states as separate production losses.

Evidence: 8 January guidance; 26 May withdrawal; 11 June restart and revised guidance. Figures retain the issuer’s 100% project, copper-in-concentrate basis before refining losses and payability deductions.

02 / LAS BAMBAS · CU-004–005

Separate the transport restart from the guidance revision

MMG’s 22 July 2025 report said transport resumed on 15 July after an interruption of about two weeks. Production continued normally, so the logistics event does not justify a mine-output deduction.

On 21 October, MMG changed its full-year guidance from a 360,000–400,000-tonne range to a 400,000-tonne point forecast. Add the point forecast as a new node and retain the earlier range.

Update your working tableClose the transport interruption while retaining normal production status. Separately change the guidance type and value. The old and new disclosure locations are already linked for review.

Evidence: Q2 report, page 6; Q3 report, pages 7 and 13. Copper contained in concentrate, full-project basis. No tonnage loss is inferred from the transport interruption.

03 / KANSANSHI S3 · CU-006

Commercial production is a project milestone, not another mine total

On 15 January 2026, First Quantum reported that S3 produced first concentrate in August 2025 and entered commercial production effective 1 December, following ramp-up.

Update your working tableMove the expansion to commercial production and continue tracking operating performance. S3’s contribution is already included in Kansanshi output; adding it again would double count production.

Evidence: 2025 preliminary production release, Kansanshi section. The effective date and disclosure date remain separate. This was a retrospective disclosure, not a contemporaneous monitoring record.

Take the updates into your workflow

  1. Find the six record IDs in Changes.
  2. Transfer the before-and-after states, periods and reporting bases into your own table.
  3. Use Evidence to check the original disclosures and retain the follow-up questions.
Open the copper workbookDownload the change table

The sample organizes source discovery, version comparison and reporting boundaries to reduce preparation work. Time savings have not yet been measured. The annual project table covers selected 2025 output; historical cases do not establish current 2026 operating conditions.