https://www.reuters.com/article/us-china-didi/chinas-didi-says-app-takedown-may-hurt-revenue-idUSKCN2EA0JT >(Reuters) -China's biggest ride-hailing firm Didi Global Inc said on Sunday that the removal of its "DiDi Chuxing" app from smartphone app stores in China is expected to have an adverse impact on its revenue.