BEIJING - Lock-up shares worth about 23.12 billion yuan (about $3.35 billion) will become eligible for trade on the Shanghai and Shenzhen stock exchanges in the coming week.

About 1.95 billion shares from 33 companies will become tradable on the exchanges from Nov 28 to Dec 2, according to RoyalFlush Information, a financial information service provider.

The volume was higher than 16.32 billion yuan of shares unlocked this week.

Sinochem International Corp, a Shanghai-based fine chemistry company, will see the unlocking of 360 million shares, the largest group of locked-up shares to hit the market next week.

Under China's market rules, major shareholders of lock-up stocks have to wait for one or two years before they are permitted to sell them.??