Holding company of THSB, TSSB started operation in October 1999. Its principal activities are processing of steel mother coils into Slit Coils and Sheets, trading and manufacturing of Steel Pipes, Expanded Metals and C Purlins.

TSSB’s steel products are widely utilized and applied in various industries such as Automotive, Furniture, Electronics & Electrical, Construction, Engineering Fabrication and etc.

It has obtained ISO 9001 certification in July 2005.