Citic Securities International

The port operator becomes the latest company to attempt a Hong Kong flotation in difficult markets.

Shares in China's largest auction house soared in the first hours of trading, with retail investors keen to buy a piece of the mainland's version of Sotheby's and Christie's.

The unit of Sinopec Group and China Galaxy Securities kick-start the city’s muted IPO market. Sinopec Engineering’s deal would be the biggest in Hong Kong this year.

The Chinese engineering company, which has signed up three cornerstone investors for a combined $50 million, seeks to raise up to $273 million from the offering.