<p>A number of Chinese private equity investors have invested RMB639 million (US$100 million) in Chinese mobile advertising platform Yeahmobi to help it expand globally, the company announced yesterday.</p> <p>Beijing Bohai Tongxin Private Equity Fund injected RMB120 million, Nanjing Huawen Hongsheng Startup Investment Fund invested RMB100 million, and Shenzhen Qianhai Bochuang Private Equity Fund put in RMB60 million. Eleven unnamed investors injected the remaining amount.</p>