Mitsui Mining Smelting

Korea Zinc Company, Ltd. is a major non-ferrous metal smelter headquartered in Seoul, South Korea. It is a leading global producer of refined zinc and other essential industrial metals.

Metallurgical Corporation of China Ltd. (MCC), alongside its various subsidiaries, operates a diverse business portfolio encompassing engineering contracting, real estate development, equipment manufacturing, and natural resource extraction, with operations spanning both China and international markets. Its Engineering Contracting division provides comprehensive services, including design, construction, and associated contracting, for a variety of projects, both within the metallurgical sector and broader industrial domains. The Property Development segment is active in the construction and sale of residential and commercial real estate, alongside land development. MCC's Equipment Manufacturing arm focuses on the innovation and production of specialized metallurgical machinery, structural steel components, and other metallic products. Finally, its Resource Development division manages the full lifecycle of mineral resources, from exploration and extraction to processing, and is also involved in the production of nonferrous metals and polysilicon. Established in 2008, MCC's corporate headquarters are situated in Beijing, People's Republic of China.

ALCONIX Corporation, based in Tokyo, Japan, is a global enterprise specializing in the import, export, and trade of non-ferrous metal resources and related products. The company's extensive operations encompass the sourcing, processing, and intermediate distribution of critical materials, including a broad spectrum of rare metals such as tungsten, tantalum, titanium, molybdenum, various rare earth elements, tin, nickel, and other metals listed on the London Metal Exchange (LME), alongside the reclamation and recycling of rare and noble metals. Its diverse product portfolio also features copper tubing and tanks for applications spanning water supply, heat exchange, refrigeration, and fuel systems, as well as aluminum coils and other aluminum-based goods, plastic tubing, industrial gases like freon, and essential electronic materials for semiconductor manufacturing. Furthermore, ALCONIX supplies copper and copper-base alloys, finished aluminum and office products, copper bands and plates, aluminum and copper scraps, and various stainless steel and plastic items. The company actively manufactures and markets specialized chemical compounds and materials, which include copper and nickel anodes/cathodes, copper sulfate, oxygen-free copper wire, bus bars, nickel sulfates and acetates, nickel bromide, potassium cyanide, boric acid, sulfamates, and sulfamic acid compounds. Its wide-ranging offerings are further enhanced by welding materials, non-destructive inspection tools, printing and marking equipment, carbon and powder metallurgy products, and electrical components. ALCONIX additionally provides semiconductor packaging machinery, prototype automotive parts, industrial robots, precision machining tools and their components, electromagnetic valve and heater core parts, other machined metal components, housing construction materials, solar power generation systems, and a variety of brackets. Established in 1981, the company was formerly known as Nissho Iwai Alconix Corporation, adopting its current name, ALCONIX Corporation, in April 2005.

Established in Tokyo, Japan, in 1884, Dowa Holdings Co., Ltd. is a global enterprise conducting diverse operations across several key industrial sectors: environmental management and recycling, nonferrous metals, electronic materials, metal processing, and heat treatment. Its Environmental Management & Recycling division provides comprehensive solutions, including intermediate waste treatment, controlled landfilling, and vital soil remediation services. This segment also specializes in the recycling of various materials, such as metals, household appliances, and automobiles, alongside offering environmental consulting and specialized logistics. The Nonferrous Metals segment is a significant producer and supplier of an extensive array of precious and base metals, including gold, silver, copper, lead, zinc, and various zinc alloys. It further deals in palladium, rhodium, tin, antimony, nickel sulfate, bismuth, indium, platinum, tellurium, and sulfuric acid. Within its Electronic Materials operations, Dowa Holdings manufactures high-purity substances, gallium arsenide (GaAs) substrate wafers, and light-emitting diodes (LEDs). This unit additionally supplies various powders, such as silver, copper, metal, carrier, and ferrite powders. The Metal Processing unit manufactures a range of products including copper and brass items, copper and nickel alloy strips, reflow tin plated strips, brass rods, and forged brass components. It also offers precious metal plating products and metal-ceramics substrates. Finally, the Heat Treatment division specializes in the entire lifecycle of industrial furnaces and related equipment, from design and manufacturing to ongoing maintenance, while also delivering expert heat and surface treatment services. Beyond these core areas, the company's broader activities include the construction and upkeep of plants and machinery, heavy concrete construction work, and the management of golf courses and real estate. Dowa Holdings also provides general business support, technological development assistance, analytical and evaluation services, and environmental measurement. The company was originally incorporated as Dowa Mining Co., Ltd., before adopting its current name, Dowa Holdings Co., Ltd., in October 2006.

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South32 Limited is a global mining and metals company, producing commodities that are used in many aspects of modern life and will play a critical role in a low-carbon future.

American Strategic Metals Corp. is a vertically integrated critical minerals platform that refines multi-metallic materials into strategic resources for defense, technology, and domestic supply chains. Operating a processing facility in Missouri, the company aims to reduce U.S. reliance on foreign mineral sources.