Hong Kong Exchanges and Clearing CEO Charles Li (L) poses next to Sinopec Engineering (Group) Co. Ltd chairman Cai Xiyou (R) and China Galaxy Securities chairman and non-executive director Chen Youan during the debut of their companies at the Hong Kong Exchanges, on May 23. Sinopec Engineering (Group) gained 1.9 percent in its stock market debut after raising $1.8 billion in a Hong Kong IPO last week, amid signs that investors remain cautious about new listings. The rise follows a bigger 6 percent first-day rise for China Galaxy Securities on Wednesday. The debuts were being watched ahead of other planned listings in the city, after a slump in initial public offering issuance in the first quarter. Reuters/Bobby Yip