Mr. Chen has propelled the privately held HNA onto the world stage through a dizzying array of acquisitions, a spending spree supported by Chinese state banks and hidden behind a holding company with a complex ownership structure. According to corporate filings, state-backed banks have given HNA a $60 billion line of credit, a level of lending usually reserved for state-owned enterprises charged with carrying out the government’s policies.
It is not known whether Ms. Wen's father, Wen Jiabao, played any role in that deal. But as prime minister, he would have had ultimate responsibility for state-owned companies and their regulators. Efforts to reach Ms. Wen and other members of her family were unsuccessful. More from the New York TimesA spokesman for JPMorgan declined to comment.