Ref Ref. 2S_BoD008/2019 May 13th, 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

set-q1-62 (Translation) Ref.No.LEE 07/2019 May 14, 2019 Subject : Management Discussion and Analysis for the first quarter ended March 31, 2019 To : President of The Stock Exchange of Thailand We

-English translation- M06/006/19 August 14, 2019 Subject Clarification of Q2/2019 Company Performance To The President of the Stock Exchange of Thailand Reference MDX Public Company Limited and its

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

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

set-q2-61 (Translation) LEE 10/2018 14 August 2018 Subject : Management Discussion and Analysis for the second quarter ended June 30, 2018 To : President of The Stock Exchange of Thailand We submit

Stock Exchange of Thailand For the Q3/2018 period ended of September 30, 2018 (3 months) operating result of the company net profit Baht 4.79 Million comparison with the previous Q3/2017’s net loss of

-Translation- No. M06/011/18 November 14, 2018 Subject Clarification of Q3/2018 Company Performance To The President of the Stock Exchange of Thailand Reference MDX Public Company Limited and its

(Translation) No. ACC6602/001 February 28, 2023 Subject: Clarification of operating results for the Year 2022 To: The President, The Stock Exchange of Thailand Advanced Connection Corporation Public

The material events in the proposed rules are those already specified and currently required by the Stock Exchange of Thailand (SET) to be reported by listed companies. The proposed rules would allow