Lynas Corporation Limited is principally engaged in integrated extraction and processing of rare earth minerals, primarily in Australia and Malaysia; exploration and development of Rare Earth deposits; and exploration for other mineral resources. In May 2011, its concentration plant in Western Australia was commissioned. As of June 2012, more than 13,000 dry tones of concentrate containing more than 4,800 tones of rare earth oxide (REO) were bagged ready for export by the Company. Its subsidiaries include Lynas Malaysia Sdn Bdh, which is engaged in the development of advanced material processing plant; Lynas Services Pty Ltd, which is engaged in the provision of corporate services; Mount Weld Holdings Pty Ltd, which is a holding company; Mount Weld Mining Pty Ltd, which is engaged in the development of mining areas of interest and operation of concentration plant; Lynas Africa Holdings Pty Ltd, a Holding company; and Lynas Africa Ltd, which is a engaged in mineral exploration.