Established in February 1991, Sun Metal Co., Ltd. (SMC) stands as a distinguished joint venture between Srikrungwattana Company Limited and Sanwa Holdings Corporation. Since its inception, SMC has positioned itself as a key player in the industry, specializing in the manufacturing of rolling metal doors, steel doors, and fire-resistant doors. The company has garnered a reputation as the preferred supplier for leading construction firms, car manufacturers, industrial plants, and department stores.

SANWA Holdings increased its stake in SUN METAL COMPANY LIMITED from 25.60% to 51.29% as of October 26 and acquired control over the company. This acquisition of control will directly integrate the company's manufacturing expertise and product lineup into the SANWA Group's global strategy.