BEIJING - Lock-up shares worth 28.8 billion yuan ($4.54 billion) will become eligible for trade on China's stock market next week.

About 2.17 billion shares from 31 companies will become tradable on the Shanghai and Shenzhen bourses. The value of these shares is smaller than the 31.5 billion yuan in shares unlocked this week, data from the Southwest Securities showed.

Shanghai Construction Group Co listed on the Shanghai Stock Exchange will see non-tradable shares worth around 9.15 billion yuan become tradable on Monday, the largest amount to hit the market.

Under China'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.