TAIPEI (Taiwan News) — According to a new book, American President Donald Trump’s son-in-law Jared Kushner was involved in a US$50 million (NT$1.45 billion) secret loan from Taiwan’s Mega International Commercial Bank, reports said Wednesday (Sept. 23).

Forbes editor Dan Alexander wrote in his book “White House, Inc.” that the loan was never registered and therefore could have violated U.S. disclosure laws, CNA reported.

The transaction was reportedly related to the purchase of a warehouse in New York’s Brooklyn borough by Kushner and a business partner. As 26 percent of the bank’s parent company is owned by Taiwan’s government and has Ministry of Finance officials on its board, the alleged incident shows how the country may have a certain level of influence over the U.S. first family, including a top government adviser, Alexander wrote.

However, the book also notes that Kushner’s share in the financial deal was relatively limited, amounting to only US$1 million, though he was listed as one of the partners.

Kushner, who is married to President Trump’s daughter Ivanka, has played an influential role as a White House adviser, particularly in the administration’s Middle East policies. He has not commented on Alexander’s allegation as of the time of publication.