the Office of the Securities and Exchange Commission No. SorThor. 20/2549 Re: Rules for Derivatives Broker on Using of Derivatives Investor Contact Service and Back Office Service from Service Provider

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1188 FAX : +66 (0) 2625 1103 www.jubileediamond.co.th CS011/2018 August 7th, 2018 Subject : Connected Transaction Attention : The President The Stock Exchange of Thailand The Board of Directors' Meeting

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SATHORN, BANGKOK 10120 PHONE : +66 (0) 2625 1188 FAX : +66 (0) 2625 1103 www.jubileediamond.co.th No. CS11/2019 August 13rd, 2019 Subject: Connected Transaction Attn: Director and Manager, The Stock