Ref Ref. 2S_BoD013/2019 August 14, 2019 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand 2S Metal Public Company Limited (the

increased by 42.45 million baht (from the loss of 10.11 million baht to the profit of 32.34 million baht) as aforesaid. Yours Sincerely, Kittiphat Suthisamphat Executive Vice President

set-q1-61 (Translation) Ref.No.LEE 09/2018 May 14, 2018 Subject : Management Discussion and Analysis for the first quarter ended March 31, 2018 To : President of The Stock Exchange of Thailand We

. Yutaka Ito) President

Our Ref: TL015/02 Our Ref: TL011/18 May 14, 2018 The Stock Exchange of Thailand 93, The Stock Exchange of Thailand Building Ratchadapisek Road, Dindaeng Bangkok 10400 Attention: The President Dear

No. EXE. 009-5-18 14 May 2018 Re: Explanation of Performance of the Financial Statements for the First Quarter 2018 Attention: President The Stock Exchange of Thailand We, Venture Incorporation

: BI.IO.(1) 7/2018 June 6, 2018 President The Stock Exchange of Thailand Dear Sir, Re : Investment of common shares in Perennial HC Holdings Pte. Ltd. On behalf of Bangkok Bank Public Company Limited (“the

661 6664-5 www.indoramaventures.com Ref.No.IVL004/06/2018 19 th June 2018 President The Stock Exchange of Thailand Subject: Formation of Joint Venture in USA with Huvis Global Corporation Indorama

Ref.No.IVL002/07/2018 19th July 2018 President The Stock Exchange of Thailand Subject: Acquisition of Packaging Business in Egypt Indorama Ventures Public Company Limited (“IVL” or the “Company”) would like to

Ref Ref. HF 0110 / 2018 August 6th, 2018 Subject : Notification of the resolution of the Board of Directors No. 7/2018. To : President, The Stock Exchange of Thailand. We, Hwa Fong Rubber (Thailand