Capstone Copper CorpC
Capstone Copper Corp (TSX: CS / ASX CDI: CSC) is a Vancouver-headquartered, multi-jurisdiction copper producer formed by the 2023 merger of Capstone Mining Corp and Mantos Copper. Mantoverde (Atacama Region, Chile; Capstone 70% / Mitsubishi Materials Corporation 30%) is the flagship and largest-production asset: originally an oxide/SX-EW copper-cathode operation producing electrolytic copper since 1995, transformed by the ~$870M Mantoverde Development Project (first sulphide copper concentrate Jun 2024, commercial production Sep 2024, full milling rates by end of 2024) into a combined oxide-and-sulphide operation; annual copper production reached 95,115 tonnes in 2025, a 65% increase over 2024. A further, smaller ~$176M 'Mantoverde Optimized' brownfield expansion was sanctioned in Q3 2025 (currently in construction) and is covered by a Nov 2024 NI 43-101 Feasibility Study showing an after-tax NPV8% of $2.9B (100%-basis, $4.10/lb long-term copper price) and a 25-year mine life (extended from 19 years), with throughput rising from 32,000 to 45,000 tonnes/day. Mantos Blancos (Chile, 100%) and Cozamin (Mexico, 100%) are the company's other two active producing mines; Pinto Valley (Arizona, USA, 100%) is the original legacy Capstone Mining asset. 2026 consolidated copper production guidance is 200,000-230,000 tonnes across all four operating mines, with byproduct gold/silver/molybdenum together representing roughly 7% of FY2025 revenue (copper ~93%) -- genuinely below the materiality threshold this backlog has used elsewhere (e.g. HBM's ~38% gold, Task #617) to tag a secondary MinerCommodity, so Capstone is treated as an effective pure-play copper producer here (see markManualResearchChecked note on the commodity field). Growth pipeline includes Santo Domingo (Chile, an up-to-25%-interest JV with Orion Resource Partners) and San Antonio, both pre-construction.
Lifecycle Milestones
Construction Milestones
5 of 5 reached- Reached — date not disclosed · No single company-wide date exists for a multi-asset producer (Mantoverde, Mantos Blancos, Cozamin, Pinto Valley) with Mantoverde's own operating history predating both the 2023 corporate merger that created Capstone Copper and this record's economics anchor (the 2024 Mantoverde Development Project / Mantoverde Optimized expansions, which are real, dated expansion milestones but not 'first' or 'commercial' production events for the underlying multi-decade-old mine). Row exists to satisfy the stage=PRODUCTION lifecycle-gate check (src/lib/lifecycle-gates.ts) -- same 'no single date' treatment as this backlog's other multi-asset, multi-decade-history majors (CCO, LUN). · Source
- Reached — date not disclosed · No single company-wide date exists for a multi-asset producer (Mantoverde, Mantos Blancos, Cozamin, Pinto Valley) with Mantoverde's own operating history predating both the 2023 corporate merger that created Capstone Copper and this record's economics anchor (the 2024 Mantoverde Development Project / Mantoverde Optimized expansions, which are real, dated expansion milestones but not 'first' or 'commercial' production events for the underlying multi-decade-old mine). Row exists to satisfy the stage=PRODUCTION lifecycle-gate check (src/lib/lifecycle-gates.ts) -- same 'no single date' treatment as this backlog's other multi-asset, multi-decade-history majors (CCO, LUN). · Source
- Reached — date not disclosed · No single company-wide date exists for a multi-asset producer (Mantoverde, Mantos Blancos, Cozamin, Pinto Valley) with Mantoverde's own operating history predating both the 2023 corporate merger that created Capstone Copper and this record's economics anchor (the 2024 Mantoverde Development Project / Mantoverde Optimized expansions, which are real, dated expansion milestones but not 'first' or 'commercial' production events for the underlying multi-decade-old mine). Row exists to satisfy the stage=PRODUCTION lifecycle-gate check (src/lib/lifecycle-gates.ts) -- same 'no single date' treatment as this backlog's other multi-asset, multi-decade-history majors (CCO, LUN). · Source
- Jan 1995 · Mantoverde (the flagship, largest-production asset and this record's economics/milestone anchor) began producing electrolytic copper cathode via SX-EW leaching in 1995, long before the 2023 Capstone Mining/Mantos Copper merger created the current company or the 2024 Mantoverde Development Project sulphide expansion. Year precision only (exact month not independently confirmed this pass). · Source
- Reached — date not disclosed · No single company-wide date exists for a multi-asset producer (Mantoverde, Mantos Blancos, Cozamin, Pinto Valley) with Mantoverde's own operating history predating both the 2023 corporate merger that created Capstone Copper and this record's economics anchor (the 2024 Mantoverde Development Project / Mantoverde Optimized expansions, which are real, dated expansion milestones but not 'first' or 'commercial' production events for the underlying multi-decade-old mine). Row exists to satisfy the stage=PRODUCTION lifecycle-gate check (src/lib/lifecycle-gates.ts) -- same 'no single date' treatment as this backlog's other multi-asset, multi-decade-history majors (CCO, LUN). · Source
Milestones are recorded only from a company's own dated disclosure. A milestone with no date shown is one we can confirm was reached but for which no date was disclosed — we don't estimate one. "Not yet reached" means exactly that, not that a date is missing. An "Expected" line likewise only ever reflects the company's own guidance (e.g. a study or permit decision targeted for a stated quarter) — most not-yet-reached milestones have none, and that absence means no such guidance has been disclosed, not that one is overdue.
A relative ranking of how closely this company matches the profile of juniors that have actually been acquired — not a probability, and not a reason to buy. Acquisitions are rare: only a few dozen significant deals happen a year across a universe of thousands of juniors, so even a high score here describes a long shot. The strongest signal the underlying research identifies — whether a major already holds a JV, earn-in, or 5–19.9% strategic stake — isn't tracked yet and is absent from this score.
Your Rankings
Management Team
President and Chief Executive Officer of Capstone Copper Corp, appointed May 2025 after serving as President & COO since January 2022; previously Senior VP and COO of Hudbay Minerals.
Senior Vice President and Chief Financial Officer of Capstone Copper Corp, with the company since 2018; Canadian CPA, previously 13 years at Goldcorp Inc.
Senior Vice President, Risk, ESG, General Counsel and Corporate Secretary of Capstone Copper Corp, with the company since 2021.
Insiders, Investors & Smart Money
Notable shareholders and insiders whose involvement is worth knowing about, plus what we're seeing from institutional/large-investor activity.
No smart-money tracking (institutional/large-investor activity) for this miner yet — this is a planned feature, not live data.
No notable insiders tracked for this miner yet.
Reports, Presentations & Documents
Multi-asset producer (Mantoverde, Mantos Blancos, Cozamin, Pinto Valley) with different ownership percentages (Mantoverde 70%, others 100%) and no single consolidated corporate-level dcfNpvUsd/irrPct/technicalReportPriceAssumptionUsd figure disclosed -- same structural gap as this backlog's other multi-asset majors. dcfNpvUsd below is Capstone's 70% attributable share of Mantoverde's (the flagship asset) Nov 2024 Feasibility Study NPV. ouncesFound is deliberately left null per this repo's still-open Task #324 ouncesFound/copper-unit policy question -- same convention as BHP/SCCO/FCX/IVN/HBM/LUN in this backlog. irrPct not found in this pass's available coverage of the Mantoverde Optimized FS.