Vantaz Group

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Longitudinal structured panel of Chilean mining collective bargaining and industrial-action events, compiled continuously since 2018 by Vantaz's studies department. Per negotiation: mining company and site (BHP-Minera Escondida, CODELCO-Chuquicamata, AMSA-Pelambre, Minera Spence, Distrito Centinela, supervisor unions), union identity and number, worker headcount covered (e.g. 1,804 at AMSA), whether the process ran through the statutory/regulatory channel (62% of disclosed 2023 cases), whether mediation was sought (6 of 13 in 2023), initial-offer rejection and final-offer acceptance vote percentages (e.g. 99.74% rejection at Distrito Centinela, 97.1% at Supervisores; 83% acceptance at Minera Spence, 94% at Sindicato Nº2), strike occurrence and duration (BHP Escondida 44 days), term-of-conflict bonus amounts (2023 average ~CLP 17.5 million; individual deals up to 80% above prior round; CLP 21m Escondida 2019, CLP 12.1m Chuquicamata 2021, CLP 25m AMSA-Pelambre 2022), real wage adjustment, and negotiated non-monetary terms (education, elder care, telework, flexible scheduling, the 40-hour law, autonomous trucks and integrated operations centres as bargaining subjects).