The Times yesterday reported on its website, citing a confidential United States government document, that a bribery investigation had been opened to study the allegations.
The paper cited one case where the bank hired the son of Tang Shuangning, a former Chinese banking regulator who was now chairman of the state-run China Everbright Group financial conglomerate.
The paper reported that JPMorgan secured a succession of sought-after deals from China Everbright after hiring the son, Tang Xiaoning.
The official in question was later arrested in connection with a bribery scandal, according to the document cited by the Times.
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It said the daughter's hiring came as The China Railway Group's selected JPMorgan to advise it on becoming a public company.
China Railway later raised a staggering USD 5 billion when it floated in 2007.
The civil investigation by the Securities and Exchange Commission's anti-bribery unit had not previously been disclosed.
The Times however said the government document did not show a clear link between JPMorgan's hiring policy and its ability to secure business.
"We publicly disclosed this matter in our 10-Q filing last week and are fully co-operating with regulators," a JPMorgan spokesman was quoted by the Times as saying.