The Chinese battery maker powering ahead of its competition

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China's Contemporary Amperex Technology Co. Limited (CATL) supplies major carmakers including Tesla, Volkswagen and Toyota. We ask how it has become one of the world's fastest-growing firms. Elsewhere, a 50-year land dispute off West Africa is now centred on oil deposits. And, the flight attendants in Spain who have been asked to give back a pay rise. The latest business and finance news from around the world, on the BBC.