On July 19, 2011, Yunan province, China-based steelmaker Yunan Sanyu Steel Pipe Co. has been launched in Jinning County-based Chinese Jinning Industrial Park.
Built on an area of is 30,000 square meters Sanyu Steel Pipe is expected to produce 100,000 mt spiral steel pipe per year. The construction of the project started in July 2010, and it has been completed recently.