IRPC Public : Disposal of investment of a subsidiary, IRPC Polyol Company Limited

-Translation-

Ref. Ngor Nor Por. 047/2017

December 20, 2017

Subject : Disposal of investment of a subsidiary, IRPC Polyol Company LimitedTo :President

The Stock Exchange of ThailandRef :IRPC's SET Notification Letter No. Ngor Nor Por 045/2016, Dated 20 September 2016, Subject : Divestment in IRPC Polyol Company Limited

IRPC Public Company Limited (the "Company") is pleased to inform that the Board of Directors Meeting of the Company No. 12/2017 which was held on December 20, 2017 has passed the resolution on the approval to dispose the further 25 percent stake holding in IRPC Polyol Company Limited (IRPCP) to PCC Rokita SA (Poland). IRPCP is a subsidiary of IRPC and has issued and paid up capital of 300,000,000 Baht. At present, IRPC holds 75 percent of total paid up capital in IRPCP and PCC Rokita SA (Poland) has 25 percent stake holding according to the Company's aforementioned notification to SET. Consequently, after disposal of 25 percent stake holding in IRPCP to PCC Rokita SA (Poland), IRPC and PCC Rokita SA (Poland) will jointly hold 50 percent stake holding each in IRPCP. The transaction value of the investment disposition is agreed upon between the seller and the purchaser via independent negotiation with reasonable return on investment.

The objective of the disposal in IRPCP is to expand the cooperation in production and marketing of polyurethane, which is the high value added product as well as the new technological knowledge transfer in order to increase the production process efficiency and create the opportunity of rapid business growth.

The potential transaction is not a connected transaction, and the transaction size does not require disclosure under the Notification of Capital Market Supervisory Board regarding procedures and disclosure of information concerning the acquisition and disposition of assets of listed company. It is, however, in compliance with SET's rules, procedures and disclosure of information concerning a listed company of its subsidiary's joint venture with the proportion of the joint venture more than 10 percent of the total paid up capital of the joint venture company.

Please be informed accordingly.

Yours sincerely,

(Mr. Sukrit Surabotsopon) President

Finance and Investor Relations Department

Tel. 02-765-7380

Fax. 02-765-7379