Shanghai Maxmount Special Steel Co.Ltd is invested by  Shanghai Decent Investment Group, a subsidiary to Tsingshan Iron and Steel Board of Directors.
LtdTsingshan Iron & Steel is the largest private stainless steel manufacture in China and the largest stainless long products producer in the world.
     Currently, the total capacity of stainless steel from Tsingshan Steel is 1.5 million ton per year including stainless steel bars, wire rods, seamless pipes, welded pipes and flat products.