China Mobile, the world’s largest carrier by subscribers, has bought an 18% stake in one of Thailand’s leading telecom companies, True Corp., for over $880 million. The Chinese carrier has been battling declining profitability in the country’s saturating wireless market for the past few quarters, and the company’s Chairman informed investors of their intention to invest overseas last year. This is China Mobile’s second major foreign deal, following its acquisition of Pakistan carrier Paktel (now known as Zong) in 2007.