Venezuela's largest steelmaker SIDOR ceased operating permanently after the blackout. Ma previously served as Chairman of Baowu Group, China's largest steelmaker. Silo was acquired by Cyclops Steel, a Pittsburgh-based specialty steelmaker in February 1980. In 1998 Cockerill-Sambre, a Belgian steelmaker was acquired. Harbinger sold the business to Severstal, a steelmaker based in Russia. The city is notable for being the location where steelmaker BMZ was established. Since 1994 Max Jadot has held a seat on the board of the steelmaker Bekaert. In the early 1930s, she married Thomas Morrison McKenna, a wealthy steelmaker.