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Antofagasta is a Chilean-based company primarily engaged in the mining sector, focusing on the exploration, extraction, and processing of copper. The company operates several mining sites in Chile, including the Los Pelambres, Centinela, Antucoya, and Zaldívar copper mines, and also has interests in transport and water distribution. Founded in the 1880s, its roots trace back to the Chilean nitrate and railway industries. Headquartered in Santiago, Chile, Antofagasta has established a significant geographic footprint in the region, enhancing its logistics efficiencies. The company's strategic focus on cost-efficient production and sustainable practices underscores its competitive strengths in the global minerals market.

Linde is the largest industrial gas supplier in the world, with operations in over 100 countries. The firm's main products are atmospheric gases (including oxygen, nitrogen, and argon) and process gases (including hydrogen, carbon dioxide, and helium), as well as equipment used in industrial gas production. Linde serves a wide variety of end markets, including chemicals, manufacturing, healthcare, and steelmaking. Linde generated approximately $34 billion in revenue in 2025.