's system for categorizing customers and offering debentures according to the customer classification, as well as its supervision were insufficiently stringent because CL did not inspect that the

contact that is authorized to analyze securities investments, and Category B investor contact referring to investor contact that is unauthorized to analyze securities investments; “investment advisory agent

will regularly review and maintain the audit quality control system to comply with the standards mentioned in 1. Additionally, the audit firm consents for inspectors of the SEC Office to inspect the

and maintain the audit quality control system to comply with the standards mentioned in 1. Additionally, the audit firm consents for inspectors of the SEC Office to inspect the audit quality when

and the audit firm consents inspectors of the SEC to inspect the audit quality system when the SEC requires. 3. I consent to prepare and deliver information that the audit firm will prepare or obtain

Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries would like to describe and analyze the financial situation and business operation for Quarter 1/2018

Limited and its subsidiaries would like to describe and analyze the financial situation and business operation for Quarter 2/2018, in order to disclose as th e information to the investor and public

results for Quarter 3/2018 To : Director and Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries would like to describe and analyze the financial

bondholder representative analyze the benefits and shortcomings as well as the potential impacts on the bondholders both in cases of approval and decline of approval for the above matters with respective

installments from 8 to 7 installments.   The SEC requires that the bondholder representative analyze the benefits and shortcomings as well as the potential impacts on the bondholders both in cases of