- Business
- CK SAN-ETSU Co., Ltd. manufactures and sells brass rods, brass wires, and related copper alloy products primarily for applications in plumbing, automotive parts, gas appliances, faucets, and electronic components. The company offers free-cutting brass rods and tubes; dezincification-resistant brass rods including Z00, Z34, and DR5; brass wires and special copper alloy wires such as reflow tin-plated copper wire and phosphor bronze wire; precision machined and forged parts including camera mounts; lead-free brass under the BZ series; low-lead brass rods including PB02, Z002, and Z342; and environmentally conscious piping equipment under the CK brand. It operates through segments focused on brass products, precision parts, and trading, serving markets in Japan, China, Taiwan, and other regions via subsidiaries such as SAN-ETSU METALS Co., Ltd., CK Metals Ltd., San-Etsu Metals (Shanghai) Co., Ltd., and Taiwan San-Etsu Co., Ltd.
Founded in 1937 and headquartered in Takaoka, Toyama, Japan, the company maintains production facilities including Tonami Works, Takaoka Works, and Precision Works, with sales offices in Tokyo, Osaka, and Nagoya.
In recent developments, CK SAN-ETSU agreed to acquire an additional 71.15% stake in Mitani Shindo Co., Ltd., increasing its ownership to 75.20%; the company also completed an equity buyback of 200,000 shares, or 2.35% of its capital, for ¥760 million in May 2025.