Manganese Bronze Holdings LTI Limited as its only operating division. In October 2012, MBH entered administration, having not made a profit since 2007. The Chinese automotive manufacturer Geely, which already owned 20% of the shares in LTI Limited, the company's only business, agreed to purchase LTI's principal assets and trade from the administrator to save the business and continue the production of taxis in Coventry. The new holding company was named The London Taxi Corporation, and traded as "The London Taxi Company" (as LTI had done): this successor company was renamed to London EV Company in 2017. Manganese originally made ship propellers. In
Manganese(II) sulfate highly characteristic. Typically, manganese ores are purified by their conversion to manganese(II) sulfate. Treatment of aqueous solutions of the sulfate with sodium carbonate leads to precipitation of manganese carbonate, which can be calcined to give the oxides MnO. In the laboratory, manganese sulfate can be made by treating manganese dioxide with sulfur dioxide: It can also be made by mixing potassium permanganate with sodium bisulfate and hydrogen peroxide. Manganese sulfate is a by-product of various industrially significant oxidations that use manganese dioxide, including the manufacture of hydroquinone and anisaldehyde. Electrolysis of manganese sulfate yields manganese dioxide, which is called EMD