Lock-up shares worth 17 billion yuan (2.76 billion U.S. dollars) will become eligible for trade this week in China.

Altogether, 17 listed companies on the two stock exchanges will see their lock-up shares released onto capital markets from June 9 to 13, according to Shanghai and Shenzhen stock exchanges.

Fifteen of the companies, including Hengyi Petrochemical Co., Ltd. are listed on the Shenzhen stock market while the two others are listed in Shanghai.

Under the mainland's market rules, major shareholders of non-tradable stocks are subject to one or two years of lock-up before they are permitted to trade.