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PT Amman Mineral Internasional Tbk (IDX: AMMN) is an Indonesian mining group that operates the Batu Hijau open-pit copper-gold porphyry mine on Sumbawa island, West Nusa Tenggara, and holds the adjacent undeveloped Elang deposit — described by the company as one of the world's largest undeveloped porphyry copper-gold deposits — as its next growth phase.
No single majority/controlling shareholder — GLEIF has an LEI record for PT Amman Mineral Internasional Tbk. but reports no parent (parent_reported: false), consistent with a widely-held-among-private-groups structure rather than a filed corporate parent. Three private Indonesian holding entities together hold ~68.7% (remainder is public float ~15.5% plus institutions/insiders); no single entity crosses 50%, so no `parent_slug` is set. Amman Mineral Industri (AMIN), the smelter/PMR subsidiary referenced in this dossier's production footprint, is operated by PT Amman Mineral Internasional per its own site and the Jakarta Post completion report, not a separate publicly listed entity with its own dossier.
Named counterparties identified by open-source research and written only where a primary source states the relationship — never inferred from sector or co-mention. 4 customer-side. This is a partial view: it covers the relationships we could evidence, not the company's full supply base.
AMNT company disclosure: Concentrate Sales Agreement (30 May 2023) commits Glencore to buy no less than 400,000 tonnes of Batu Hijau copper concentrate between 2024 and 2026, amending an earlier 16 Sep 2021 agreement. No % share of AMMAN's total concentrate output disclosed for this volume.
AMMN Annual Report 2025, consolidated FS note on sales >10% of total (p.315): 'LS Metals and Materials Inc. - [2025] / 10.4% 278,001 [US$ thousand, 2024]'; no 2025 sale to LS as exports were restricted and AMNT's own smelter took the concentrate. AR 2025 MD&A (p.99): 2024 revenue was concentrate (US$1,465m) and 2025 was the first year of copper cathode revenue, so the FY2024 LS sale is Batu Hijau (Sumbawa, Indonesia) copper concentrate. AR 2023 (https://minedocs.com/26/PT-Amman-Mineral-Internasional-AR-2023.pdf) had LS Metals at 12.4% / US$253.2m (2023) and 17.1% / US$483.7m (2022). LS Metals and Materials Inc. (formerly LS-Nikko Copper) = LS MnM, whose only copper smelter is Onsan, Ulsan, Korea. Batu Hijau ID > Onsan KR.
PT Amman Mineral Internasional Tbk Annual Report 2023 (consolidated FS note 24, sales >10% of total; note 6 trade receivables). Before the 2024-26 smelter start-up AMNT's only saleable copper product was Batu Hijau (Sumbawa, Indonesia) concentrate; the AR states 'we have sold our products principally to copper smelters in Japan, South Korea, the Philippines, Indonesia, and India'. Trade receivables: 'Sumitomo Metal Mining Co. Ltd. 49,249 [US$ thousand, 2023] / 3,010 [2022]'. SMM's copper smelter is Toyo (Ehime, Japan). Receivable, not a sales-% figure. Checked 2026-09-28: AMMN Annual Report 2024 note 6 shows the SMM trade receivable at nil at 2024-12-31 (US$49,249k at 2023-12-31) and SMM is not among 2024 customers above 10% of sales (Glencore International AG 78.3%, LS Metals and Materials 10.4%); the 2025 report does not name SMM either, so this pair remains 2023-only evidence.
PT Amman Mineral Internasional Tbk Annual Report 2023 (consolidated FS note 24, sales >10% of total; note 6 trade receivables). Before the 2024-26 smelter start-up AMNT's only saleable copper product was Batu Hijau (Sumbawa, Indonesia) concentrate; the AR states 'we have sold our products principally to copper smelters in Japan, South Korea, the Philippines, Indonesia, and India'. Trade receivables: 'Philippine Associated Smelting and Refining Corporation 11,966 [US$ thousand, 2023] / 43,968 [2022]'. PASAR's smelter is at Isabel, Leyte, Philippines.
Scope. Absence of a counterparty here is not evidence that none exists — most commercial sourcing is confidential and never becomes public. Rows without a share figure mean no share was disclosed, not that the relationship is small.
This company sits on the supply side for 2 of its 2 materials — a restriction on those is a tailwind, not a headwind.
As a producer, policy pressure across its produced materials is flat.
Descriptive trend in official policy actions on this company’s materials — a policy-pressure trend, not a price or trading signal. No forward probability is implied. Direction is measured on actions we have discovered, and discovery lags events: where the recent window is too thin to support a calm reading, the row says coverage-limited instead of easing.
No actions in the register have named or swept this company in the last 24 months.