Bank of Communications Co. (3328.HK), China's fifth-largest bank by assets, said Thursday it would raise CNY56.6 billion ($9 billion) in a private placement to boost its capital in order to comply with stricter regulations in China.

The state-run bank, in which HSBC Holdings PLC owns a stake of roughly 19%, said it would issue 6.54 billion yuan-denominated A shares at CNY4.55 each and 5.84 billion Hong Kong dollar-denominated H shares at HK$5.63 each.

At least five institutional investors, including China's Ministry of Finance and HSBC, will take part in the share offering.

HSBC has agreed to subscribe to 2.36 billion shares in the placement for approximately HK$13.26 billion.

-Rose Yu and Fiona Law contributed to this article, Dow Jones Newswires; 8621 6120-1200; rose.yu@dowjones.com