The founder of cryptocurrency exchange FTX, Sam Bankman-Fried, is challenging the validity of new charges added to an indictment after he agreed to be brought to the United States in December from the Bahamas. Bankman-Fried’s lawyer, Mark Cohen, pleaded not guilty to new charges lodged against his client, stating that he was not acknowledging that he can be tried on them. Bankman-Fried has been charged with violating the anti-bribery provisions of the Foreign Corrupt Practices Act by directing the payment of $40 million in bribes to a Chinese official to release $1 billion in cryptocurrency. His trial is scheduled to begin in the fall. Previously, he pleaded not guilty to charges of defrauding investors out of billions of dollars before his business collapsed. The maximum prison time he could face if convicted has been increased from 115 years to 155 years.