Sanyu Co., Ltd. (5697.T) is a Japan-based manufacturer and seller of brass bar steel and cold headed steel wires. The company operates through two primary business segments: the Brass Bar Steel segment, which manufactures and sells brass bar steel along with precision-machined versions of these products; and the Cold Headed Steel Wires segment, which produces and sells cold headed steel wires and also engages in leasing land, buildings, and equipment. Its product portfolio includes polished steel bars such as carbon steel for machine construction, sulfur and sulfur composite free-cutting steel, alloy steel, construction machinery parts, press dies, turbine shafts for hydroelectric and thermal power generators, rotating shafts for pumps and motors, sewing machine parts, and furniture components, serving applications in electric automobiles, construction, industrial and agricultural machinery, and office automation equipment. Sanyu Co., Ltd. was incorporated in 1957 and is headquartered in Hirakata-shi, Osaka Prefecture, Japan, with approximately 301 employees and operations primarily focused on the domestic market. In recent developments, the company announced revisions to its fiscal year ending March 2026 full-year performance forecast and dividend forecast on November 5, 2025, alongside the release of its second quarter financial results for the same period; it also held an extraordinary general meeting of shareholders in September 2025 and issued related notices in August 2025.