BERLIN (Reuters) – Germany’s Economy Ministry has refused to provide carmaker Volkswagen with guarantees to cover new investments in China because of concerns over human rights violations in the Xinjiang region, Der Spiegel reported on Friday. The ministry confirmed it had turned down four applications from a company over human rights concerns in Xinjiang but declined to name the company. Der Spiegel said, without naming sources, that Volkswagen was the company in question. “The human rights situation in Xinjiang has become worse in recent years and involves forced labour and mass internment o…