(Telecompaper) Apple CEO Tim Cook and China Mobile chairman Xi Guohua met and discussed cooperation, raising the possibility that the world's largest mobile carrier soon would begin offering the iPhone. China Mobile said the meeting took place at the company's Beijing headquarters, during Cook's second trip to the country in less than year, the Wall Street Journal reports. The company declined to disclose details of the discussions, citing a confidentiality agreement. China Mobile executives have said iPhone subscriptions likely would come only after the company introduces 4G services, which the carrier hopes to begin operating in the second half. In an interview with the Chinese news site Sina, Cook said he expects China to eventually become Apple's biggest market. Currently, Apple's sales in China are just over a third of its US revenues. In a separate interview in China with Shanghai Evening News, Phil Schiller, Apple's head of worldwide marketing, dismissed reports the company is working on a low-cost version of the iPhone, the Financial Times reports. "Despite the popularity of cheap smartphones [in China], this will never be the future of Apple's products," he said.