An education company co-founded by Goldman Sachs is at the center of a corruption probe that has ensnared the head of a leading Chinese state-owned corporation.
Lei Yi, chairman of Yunnan Tin, the world's largest producer of the industrial metal by volumes, has been charged with accepting bribes worth Rmb 20 million ($3.3 million), according to a state media report on the Yunnan provincial government's website.
The case against Mr Lei is the latest in a series of investigations launched by China's new leadership as it attempts to address deep-seated corruption among government officials and their allies in powerful state enterprises.
(Read more: China's solution to elderly neglect: Sue your kids)
The drive has so far brought charges against former and current executives at national oil company PetroChina as well as probes of international pharmaceutical companies including GlaxoSmithKline. Foreign banks have largely avoided scrutiny to date.