Just before its 2019 takeover by the China Baowu Group, Maanshan (also known as Masteel, or Magang) was the 16th largest steelmaker in the world with crude steel production of almost 20 million tonnes / year.
Located on the banks of the Yangtze river, the works was set up in the 1950s to quicken national steel production. The timeline below covers the history of the firm.