Press Release

• Reflects PTTEP’s status as one of the exploration and production companies that drive its business with a focus on sustainability
• Remains committed to sustainable practices in business, society and environment and adheres to good corporate governance focusing on anti-corruption principle

Bangkok September 13, 2018 – PTTEP has once again been selected as a member of the 2018 Dow Jones Sustainability Indices (DJSI) in the DJSI World Oil and Gas Upstream & Integrated Industry. This marks the fifth consecutive year that the company has received worldwide recognition for its sustainability performances, underlining the company’s vision of becoming a leading Asian E&P company driven by competitive performance, advanced technology and green practices.

“The success of our fifth consecutive year as a member of DJSI reflects the strong intention of all employees in seeing the same achievement; that is driving our organization with sustainability in mind. We adhere to social and environmental development, as well as good corporate governance focusing on anti-corruption principles, affirming our strong commitment to providing energy security to the country,” said Somporn Vongvuthipornchai, Chief Executive Officer of PTT Exploration and Production Public Company Limited (PTTEP).

Dow Jones Sustainability Indices (DJSI) are a family of internationally recognized indices that evaluate the sustainability performance of the largest 2,500 companies in the S&P Global Broad Market Index. To be selected for inclusion in the DJSI, companies would be evaluated on various economic, environmental and social criteria. The indices serve as a primary benchmark for investors who integrate sustainability considerations into their investment portfolios.