BEIJING - Lock-up shares worth 10.3 billion yuan ($1.7 billion) become eligible for trade this?week on the Chinese mainland.

The volume is less than the 39.54 billion yuan in shares that became eligible in the previous trading week which began on January 27, according to the Shanghai and Shenzhen stock exchanges.

Altogether 14 listed companies on the two exchanges will see lock-up shares released to capital markets this week.

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.

Of all the companies with non-tradable shares becoming tradable next week, Henan Senyuan Electric Co Ltd ranks the first with its non-tradable shares worth 2.79 billion yuan.