Founded in 1977, Sam Dong Co., Ltd. manufactures winding-wire materials and related copper products for the electrical-energy and equipment industries. Its portfolio ranges from oxygen-free high-conductivity copper to continuously transposed conductors and MgB₂ superconducting wire, supported by facilities in South Korea, the United States, and Poland.
Tongling Jingda Special Magnet Wire Co., LtdFounded in 1990 in Tongling, a major copper-producing center on the Yangtze, Tongling Jingda Special Magnet Wire Co., Ltd. manufactures electromagnetic wire and conductor solutions for motors, transformers and other electrical equipment. The publicly listed company has grown into a 24-subsidiary group with 17 research platforms and three CNAS-accredited laboratories, while its production clusters serve customers across China and international markets. Jingda is particularly active in electric-vehicle drive motors, where its copper flat wire is designed for high energy density, heat dissipation and corona resistance.NEW YORK, NY
International Wire Group, IncInternational Wire Group, Inc. manufactures copper and copper-alloy wire products, including single-end, stranded, and braided wire. Founded in 1885 and headquartered in Camden, New York, it describes itself as the largest non-vertically integrated producer of copper and copper-alloy wires in the United States, serving customers across the U.S. and Europe.CAMDEN, NY
Republic Wire, IncRepublic Wire, Inc. began operations in Cincinnati, Ohio, in January 1982 and grew from a 3,000-square-foot warehouse into a wire manufacturer operating a modern production facility described as 350,000 square feet. Originally known as a bare copper wire specialist, it now manufactures wiring products for electrical wholesalers, utility distributors, RUS, investor-owned utilities, and municipalities. The company states that its copper wire products are manufactured in the United States.WEST CHESTER, OH
Sark Wire CorpSark Wire Corp manufactures uninsulated copper wire and oxygen-free copper rod at U.S. facilities in Albany, New York, and Eastanollee, Georgia. Part of Sarkuysan, a copper producer founded in 1972, the company opened its New York operation in 2008 and added its Georgia facility in 2015. With more than 200 employees and nearly 100 million pounds of annual capacity, Sark Wire produces material ranging from ultra-fine AWG 44 to heavy-duty 1200 MCM and makes its own copper rod in-house.ALBANY, NY