The Siam Industrial Wire Co., Ltd.

Siam Industrial Wire is a member of NatSteel Holdings and a wholly owned subsidiary of Tata Steel group. With an annual production of 200,000 tonnes, SIW is one of ASEAN's largest manufacturers of pre-stressed concrete steel products. It manufactures pre-stressed concrete strand, PE unbounded strand, pre-stressed concrete wire, cold drawn wire, hard drawn wire and welded wire mesh and distributes these quality products throughout Europe, Oceania, Middle East, America, Africa and Asia.

We are a success-driven company that highly values innovation, teamwork and creativity. Our aim is to be the preferred partner of clients, business associates and suppliers, and we achieve that by investing in systems that delivers quality and service.