Yieh Mau Corporation (YM) was established in 1988, with a capital investment of NTD 1.62 billion to act as a trading house for all the metal products. In 1994, YM merged with a stainless steel wire rod processing plant to expand business scope to the manufacturing field with an annual sales volume up to NTD 5 billioin level. From 1996, a new plant started to produce high value added stainless steel surface treatment products, Yieh Mau is a key provider a wide range of stainless steel in flat and long products.