SANNO Co., Ltd. (3441.T) engages in precision press processing, mold manufacturing, and precious metal surface treatment for electronic components including connectors, switches, and integrated circuit sockets; it offers high-speed gold coating, palladium nickel alloy coating, and continuous gold coating processes, as well as die design, press material processing, and molded hoop production. The company serves connector manufacturers with applications in PC-related products, mobile handsets, digital appliances, electronic cards, semiconductor facilities, gaming devices, automobile devices, and other equipment across Japan and the Philippines. Founded in 1958 and headquartered in Yokohama, Japan, SANNO operates through subsidiaries and recently completed equity buybacks in June 2024, acquiring 150,000 shares for ¥135.05 million, and in 2025, acquiring another 150,000 shares for ¥139.43 million to enhance shareholder value.