BW Yee Seng Steel Industries Sdn Bhd is a Malaysian steel‑based manufacturing and supply company, headquartered in Sungai Bakap, Penang. Established in 1999 (under its original trading name), the company now operates under the BWYS Group umbrella, producing and supplying structural steel products such as sheet‑metal roofing, welded pipes, metal roofing & truss systems, industrial racking, and scaffolding solutions. Through its scaffolding‑ supply & rental business, the company also serves construction and engineering clients — providing materials and support for building and civil works projects across Malaysia.