Do you have a link (other than a POTUS tweet) confirming that amount of $1B? "The supposed size of the China fund — $1.5 billion — comes courtesy of “Secret Empires,” a 2018 book by conservative author Peter Schweizer, who earlier had targeted Hillary Clinton in the book “Clinton Cash.” "
"Twelve days after he flew to Beijing, Hunter Biden joined the board of BHR. George Mesires, a lawyer for Hunter Biden, said in a July interview with The Washington Post’s Michael Kranish that his client’s role has been misconstrued. He said Hunter Biden was on the board of the advisory firm that did not directly invest, but instead advised those who did.
“To date, Mr. Biden has not received any return or compensation on account of this investment or his position on the board of directors,” Mesires told The Fact Checker after Trump’s remarks with Zelensky. “The characterization of Mr. Biden as owning a $1.5 billion private equity firm funded by the Chinese, or suggesting that Mr. Biden has earned millions of dollars from the firm is a gross misrepresentation of Mr. Biden’s role with BHR.”
Mesires said that the investment management company “was capitalized from various sources with a total of 30 million RMB [Chinese Renminbi], or about $4.2 million, not $1.5 billion.” Because Biden acquired a 10 percent minority interest, his “capital commitment is approximately $420,000,” Mesires said."
The Wikipedia article you provided links to this article (link above).
"The FactsFirst, we will stipulate that any child of a prominent politician needs to be wary of even the appearance of a conflict of interest between his or her business interests and their parent’s political position. Hunter Biden, as detailed in a New Yorker profile published in July, has had a checkered life and yet has managed to score business deals in countries — in particular Ukraine and China — that might not have materialized without the prominence of his father.
Similarly, Ivanka Trump was granted Chinese trademarks days before and after President Trump vowed to save jobs at ZTE, a major Chinese telecom, in 2018. She also was granted Chinese trademarks in 2017, on the same day she sat next to Chinese President Xi Jinping at a dinner."
