Sam Bankman-Fried
Sam Bankman-FriedREUTERS/Andrew Kelly

Former FTX chief Sam Bankman-Fried on Thursday pleaded not guilty to five criminal charges recently added by US prosecutors in the government's sprawling case against the former cryptocurrency company, AFP reported.

Bankman-Fried, known as "SBF," had in January entered a "not guilty" plea to eight other criminal charges from his original indictment, including fraud.

Among the newest charges -- included in a superseding indictment filed Tuesday by US Attorney Damian Williams -- were allegations that Bankman-Fried authorized bribes of at least $40 million to Chinese officials.

FTX and its sister trading house Alameda Research went bankrupt in November, dissolving a virtual trading business that at one point had been valued by the market at $32 billion.

The China case stemmed from a move by Chinese authorities to freeze Alameda accounts as part of what Bankman-Fried understood as a probe of an Alameda trading counterparty, according to AFP.

Bankman-Fried ultimately directed multi-billion dollar bribes to unfreeze the assets, said the indictment, adding that the accounts were unfrozen.

Bahamian authorities arrested Bankman-Fried in mid-December at the request of the US government. He was subsequently extradited to the US.

Bankman-Fried faces potentially dozens of years in prison. His trial is scheduled to begin in October in New York.