234,300,000 Common Shares of STC Concrete Product Public Company Limited are subject to a Lock-Up Agreement Ending on 29-NOV-2020. These Common Shares will be under lockup for 367 days starting from 28-NOV-2019 to 29-NOV-2020. Details: A total of 312,400,000 shares are under lock-up for the period of one year from the first trading day. Upon the expiration of 6 months period of the prescribed time, the shareholders will be allowed to sell 25% of the prohibited shares and the rest can be sold after one year.