Mining labor unions represent workers in mining, metallurgy and related industries, engaging in collective bargaining, health and safety advocacy, and international coordination through bodies such as IndustriALL Global Union. This directory covers the principal national unions and international federations relevant to mining.
Alphabetical.
The Construction, Forestry and Maritime Employees Union (CFMEU) Construction & General Division was placed into Commonwealth administration on 23 August 2024 following corruption and organized-crime allegations detailed in an Australian Financial Review investigative series, with more than 280 officials removed and Mark Irving KC appointed as the Federal Court-sanctioned Administrator (SBS News, Latest Turn for CFMEU as Construction Arm Placed in Immediate Administration; Government of Western Australia, WA Branch of the CFMEU Placed Into Administration). The administration's legal foundation was tested and unanimously upheld by the High Court of Australia in Ravbar v Commonwealth of Australia [2025] HCA 25 in June 2025, clearing the path for the Fair Work Commission-registered administration to continue and for associated legislative reforms to proceed (Clayton Utz, CFMEU Administration Upheld by High Court Ruling). On 22 May 2026, Michael Crosby AM succeeded Mark Irving as the union's second Administrator, tasked with continuing the Federal Court-ordered reform program through to an eventual return to member-elected governance (CFMEU, Administration). Critically for the metals and mining sector, the CFMEU's Mining and Energy Division formally withdrew from the broader CFMEU amalgamation effective 1 December 2023, re-registering as the independent Mining and Energy Union (MEU) — meaning Australia's principal black-coal and metalliferous-mining labor body was not swept into the 2024 administration order, which applies solely to the Construction & General Division (Fair Work Commission, Registered Organisations — CFMEU).
The United Steelworkers (USW) heads into the second half of 2026 with two of its largest integrated-steel bargaining relationships opening within weeks of each other. USW-Cleveland-Cliffs master contract negotiations are scheduled to begin 20 July 2026, while USW-U.S. Steel contract talks are set to start later in the summer of 2026, following U.S. Steel's 2025 acquisition by Nippon Steel and the accompanying National Security Agreement governing USW representation rights (Steel Market Update, USW and Cleveland-Cliffs to Begin Master Contract Negotiations on July 20; Steel Market Update, USW-U.S. Steel Contract Talks to Start Later This Summer). In the nonferrous and specialty-metals segment, USW Local 1123 ratified a new four-year contract with specialty-steel producer Metallus, announced 5 February 2026 (Nasdaq, United Steelworkers (USW) Local 1123 Ratify Four-Year Contract with Metallus), and aluminum producer Arconic published a bargaining update on 22 April 2026 as talks with USW continued (USW, Arconic Bargaining Update — April 22, 2026). The union maintains formally separated Steel Bargaining and Nonferrous Metals & Mining Bargaining tracks within its internal structure, reflecting distinct master-agreement cycles across the two segments (USW, 2025 Officers Report — Nonferrous Metals and Mining Bargaining).
IndustriALL Global Union, the Geneva-based federation representing metal, mining, and energy unions across roughly 140 countries, adopted its 2025–2029 Statutes at its most recent World Congress, setting the basic annual per-member affiliation fee at CHF 1.38 and codifying governance rules for the coming four-year cycle (IndustriALL Global Union, Statutes 2025–2029). The federation's mining-sector work has focused on building cross-border organizing capacity: a 19 September 2025 update describes mining unions forging global networks intended to strengthen worker protections across jurisdictions with weak enforcement of core labor rights, reflecting IndustriALL's strategy of linking affiliates in producing countries (Chile, Peru, DRC, Indonesia) with those in consuming/regulatory markets (IndustriALL Global Union, Mining Unions Forge Global Networks to Strengthen Worker Protections). IndustriALL's Latin American affiliate network includes Peru's Federación Nacional de Trabajadores Mineros, Metalúrgicos y Siderúrgicos del Perú (FNTMMSP) and multiple Chilean copper-sector federations, positioning the federation as the connective structure linking the CFMEU/USW-style developed-market disputes discussed above to the more volatile strike activity detailed in Sections 2 and 3 below.
The Federación de Trabajadores del Cobre (FTC), representing Codelco's permanent workforce across its divisions, held its 76th National Congress in La Serena on 22 April 2026, with Codelco senior leadership participating directly in congress dialogue sessions — a format that signals the FTC's institutionalized, direct-negotiation relationship with company management as distinct from the more adversarial posture of subcontractor unions. The FTC has historically been Codelco's largest single labor interlocutor and anchors the state copper company's collective-bargaining calendar across its divisions (Chuquicamata, Radomiro Tomic, El Salvador, Andina, El Teniente, Ministro Hales, and Gabriela Mistral).
The Confederación de Trabajadores del Cobre (CTC), representing Codelco's subcontracted and contract-labor workforce, led a sustained mobilization beginning 29 January 2026 over renewal of the “Acuerdo Marco” (Framework Agreement), the multi-year accord that sets minimum conditions for subcontractor employment across Codelco's divisions. Actions spread across Chuquicamata, El Salvador, Andina, and El Teniente through the following months, reflecting the structural reality that a large share of Codelco's on-site workforce is subcontracted rather than directly employed, giving the CTC leverage disproportionate to its formal headcount whenever framework-agreement protections are perceived to be at risk. A related dispute involved the TRAMSALPO union at the El Salvador division, which struck against contractor SALFA in April 2026 over conditions falling under the same Acuerdo Marco umbrella.
On 26 March 2026, Chile's Central Unitaria de Trabajadores (CUT) — the country's principal trade-union confederation — sealed a “strategic unity” pact with CTMIN, a coalition bringing together the FTC, the Federación Minera de Chile (FMC), the CTC, and additional sector federations (FESUC, FESAM, FESUMIN), explicitly framed as a joint front against anticipated labor-rights rollbacks under Chile's government led by José Antonio Kast. The pact signals that Chile's normally fragmented mining-union landscape — split between direct-employee federations like the FTC and subcontractor-focused bodies like the CTC — can coalesce rapidly when national labor policy, rather than a single employer dispute, is the perceived threat, a dynamic distinct from and layered on top of the divisional-level Acuerdo Marco negotiations described above.
Peru's formal mining-union sector saw two significant work stoppages in the first half of 2026: a 72-hour strike at Freeport-McMoRan's Cerro Verde operation in May 2026 driven by health-and-safety grievances, and a strike by the union representing workers in the Moquegua region (JFR) beginning around 2 July 2026 that directly affected copper shipment logistics from the region's export corridor. These disputes sit within Peru's broader federation structure anchored by the Federación Nacional de Trabajadores Mineros, Metalúrgicos y Siderúrgicos del Perú (FNTMMSP), an IndustriALL affiliate that has historically led national-level mobilizations against labor-law reforms perceived as weakening collective-bargaining protections in the mining sector.
Distinct from formal-sector union activity, Peru's Confederación Nacional de Mineros Artesanales y en Pequeña Escala (CONFEMIN) has led sustained informal-miner protests since June 2025 centered on deadlines under Peru's REINFO (Registro Integral de Formalización Minera) formalization registry, which sets the terms under which artisanal and small-scale miners can operate legally pending full formalization. These protests have repeatedly blocked transport routes through Cusco, Arequipa, and Apurímac — corridors used for copper concentrate and other mineral shipments — creating logistics disruption distinct from formal collective-bargaining disputes. Peru's Congress advanced legislation extending REINFO permit deadlines in November 2025, a partial response to the mobilization but one that leaves the underlying formalization timeline, and the risk of renewed blockades as later deadlines approach, unresolved.
Two International Labour Organization conventions form the fundamental global baseline for mining-sector labor organizing: Convention 87 (Freedom of Association and Protection of the Right to Organise, 1948) and Convention 98 (Right to Organise and Collective Bargaining, 1949) are both classified among the ILO's core/fundamental conventions, yet the United States has ratified neither, a gap that shapes the legal environment for USW organizing relative to jurisdictions where both conventions bind. A third convention, C169 (Indigenous and Tribal Peoples Convention, 1989), addresses labor and land rights specifically for indigenous workers in extractive industries and has been ratified by only 23 countries worldwide, concentrated in Latin America — including Chile (2008) and Peru (1994), both discussed above — making C169 a binding treaty obligation in precisely the copper-producing jurisdictions covered in this section, in contrast to the non-binding UN Declaration on the Rights of Indigenous Peoples discussed in TSM's indigenous-engagement deep-dive. Ratification campaigns remain active elsewhere: in Thailand, an IndustriALL-affiliated coalition of 26 labor organizations — the ILO C87/98 Driving Network — pushed through October 2025 for ratification of Conventions 87 and 98, tied explicitly to leverage in EU-Thailand free-trade-agreement negotiations, with the Thai government reportedly considering ratifying C98 first as an initial step.