Weerawong C&P represented PTT Public Company Limited (PTT) on the divestment of its 30.6% stake in Star Petroleum Refining Company Limited (SPRC) by selling 1.24 billion shares (worth THB 11.18 billion, approximately USD 372.6 million) in the offering of 1.44 billion shares in the initial public offering (worth THB 12.96 billion, approximately USD 432 million). PTT offered 86% of the total offering size under Thailand's Securities and Exchange Commission regulations and the listing of shares on the Stock Exchange of Thailand (SET), as well as an international offering under Rule 144 A/Regulation S of the U.S. Securities Act. SPRC is Thailand's last refinery company to list on the SET. After the offering, PTT's shareholding is reduced from 36% to 5.4% while Chevron holds 60% of shares of SPRC. The offering closed on December 3 and the first trading day on the SET was December 8, 2015.