PT Timah Tbk is one of the world’s leading integrated tin producers, headquartered in Indonesia. With a proud history dating back to 1976, the company operates across the full tin value chain, from exploration and mining to refining and marketing. As a state-owned enterprise, PT Timah plays a central role in ensuring reliable tin supply to global markets while continuously investing in innovation and efficiency. The company is also committed to responsible mining practices, community development, and supporting the growth of downstream industries that depend on tin. Through its scale and expertise, PT Timah is helping to secure the future of this vital resource for technology and society.
Mining Mineral Resources (MMR), established in 2009, is a leading tin producer in the Democratic Republic of the Congo. The company operates multiple mining sites and is distinguished by building the country’s first tin smelter, adding significant local value through refining. With internationally recognised ISO certifications and active participation in responsible sourcing programs, MMR is committed to quality, sustainability, and supporting community development.
Eloro Resources Ltd. is a Canadian-based exploration and mine development company with a strong focus on tin. Its flagship asset is the Iska Iska silver‑tin polymetallic project in southern Bolivia, where ongoing drilling has revealed extensive tin mineralisation and strong potential for a major deposit. Eloro’s efficient progress—from exploration to defining an initial resource—underscores its commitment to advancing a significant tin discovery that could support future supply to emerging technologies.
Prieto Battery, founded in 2009 by Dr. Amy Prieto and based in Colorado, is a pioneer in next-generation energy storage. The company is best known for its patented 3D solid-state lithium-ion architecture, which offers hyper-fast charging, wide temperature performance, and exceptional safety. Building on this innovation, Prieto is now expanding into sodium-ion battery technology, applying its expertise to deliver sustainable, high-performance solutions that support the growing global demand for safe and efficient energy storage.
Fenix Metals is Europe’s leading modern tin recycler, based in Poland and operating a state-of-the-art facility that transforms diverse tin residues into high-purity tin and solder alloys. With a broad portfolio of over 250 products—including ingots, wires, pellets, and custom formulations—the company serves key industries such as electronics, automotive, construction, and fashion. Committed to sustainability and excellence, Fenix Metals holds multiple certifications (ISO 9001, 14001, 45001), adheres to best-available-technology recycling practices, and actively supports local development through education and cultural initiatives.
Sizer Metals, founded in 1975 and headquartered across Singapore, Mumbai and Rajkot, is a long-established trading and sourcing specialist serving the global metals industry. The company connects producers, manufacturers and end users through a broad portfolio spanning base metals, ferro alloys, minor metals, concentrates and other strategic materials. Its Singapore subsidiary, operating in one of the world’s most important commodity hubs, leverages strong financial networks, logistics infrastructure and open trade policy to deliver competitive, reliable supply solutions across Asia and beyond. With more than four decades of experience, Sizer Metals has built particular expertise in tin, which remains its largest and most developed business. The company’s deep market knowledge, long-standing global relationships and on-the-ground presence enable it to support customers using tin in a wide variety of industrial and fabricated products. Through its emphasis on partnership, sourcing strength and commercial agility, Sizer Metals continues to create long-term value for clients across the international metals supply chain.
Mineração Taboca is a Brazilian mining and metallurgy company and the largest producer of tin in Brazil. Founded in 1969, it operates the Pitinga mine in the Amazon region, where tin is produced alongside other strategic minerals such as niobium and tantalum. The company also runs a metallurgical facility in Pirapora do Bom Jesus that refines tin concentrates into high-purity metal for domestic and international markets. With integrated mining and refining operations, Mineração Taboca is a significant and well-established contributor to the global tin supply chain.