Suzhou, China-headquartered Ascentage Pharma Group Corp. Ltd. has filed plans for a confidential IPO to the U.S. SEC for a potential dual listing on both the U.S. and Hong Kong stock exchanges. News of the U.S. IPO came just a few days after Ascentage drew a $75 million equity investment from Osaka, Japan-headquartered Takeda Pharmaceutical Co. Ltd. with the issuance of about 24.3 million shares at a purchase price of HK$24.09 (US$3.08) per share.