O'Melveny & Myers and Davis Polk & Wardwell advised on a listing application that was returned in December by the Hong Kong Stock Exchange.

The application, filed by Chinese biotech company Akeso Inc., was jointly sponsored by Morgan Stanley and J.P.Morgan. This is the first time either bank has a sponsored main board listing application rejected by the stock exchange. In 2016, a Growth Enterprise Market listing application sponsored by J.P.Morgan was also returned.

According to the application, O'Melveny & Myers represented Akesobio on Hong Kong law and U.S. law matters. Commerce & Finance Law Offices advised on Chinese law while Campbells was Cayman Islands counsel.