Shanxi Province-based Chinese stainless producer Taigang Stainless Steel Co. (Taigang Stainless Steel), a listed subsidiary of Taiyuan Iron and Steel (Group) Co. (TISCO), has announced that in the first quarter this year it registered an operating revenue of RMB 18.107 billion ($2.9 billion), up 7.48 percent year on year, and a net profit of RMB 1.461 billion ($0.23 billion), rising by 351.09 percent year on year.