Thailand’s SET Index fell 15.64, or 1.5 percent, to 1,025.08 at the 4:30 p.m. close, the first decline in five days.
PTT Chemical Pcl (PTTCH TB), Thailand’s largest petrochemical maker by market value, slid 5.2 percent to 146 baht, the largest drop since May 25. Siam Cement Pcl (SCC TB) will sell a 15.6 percent stake in PTT Chemical at 140 baht per share. Siam Cement, the nation’s third-largest publicly traded company, fell 2.6 percent to 338 baht, the first decline in eight days. PTT Pcl (PTT TB), the parent of PTT Chemical, lost 1.8 percent to 323 baht.
Phatra Securities Pcl (PHATRA TB), an investment bank, gained 1.8 percent to 27.75 baht, the highest close since Nov. 11. Phatra is among four companies hired by Siam Cement to manage the share sale of PTT Chemical.
Serm Suk Pcl (SSC TB), a Thai bottler of PepsiCo Inc. beverages, climbed 1.6 percent to 48 baht. Somchai Bulsook, chief executive officer and founder of Serm Suk, sold his entire 20.6 percent stake in the beverage company, according to the Securities and Exchange Commission’s filing.