In a hulking grey building just east of Tiananmen square in Beijing, a small team in China’s Ministry of Commerce is deciding the fate of the global auto industry, one rare earth magnet export permit at a time. China holds …

In a hulking grey building just east of Tiananmen square in Beijing, a small team in China’s Ministry of Commerce is deciding the fate of the global auto industry, one rare earth magnet export permit at a time. China holds …