Registration No. : 0107535000371 No. L041/2018 8th November 2018 Subject : The explanation of operating results for the 3rd quarter 2018 Attention : The President The Stock Exchange of Thailand Dear Sir, For the

1/2 L-WAVE ENT 20/2020 15 May 2020 Subject : Management’s Discussion and Analysis for the first quarter 2020 operating results with variation greater than 20% compared to the same period of 2019 To

August 11, 2020 Subject : Management Discussion and Analysis for Six-month and 2nd quarter ended June 30, 2020 Attention : President The Stock Exchange of Thailand Operating Performance 1. Revenues

: President of the Stock Exchange of Thailand Ua Withya Public Company Limited ("Company") would like to describe and analyze the financial position and operating results for quarter 2-2017 are summarized as

: President of the Stock Exchange of Thailand Ua Withya Public Company Limited ("Company") would like to describe and analyze the financial position and operating results for quarter 2-2018 are summarized as

No. SN.LK 017/2018 May 11, 2018 Subject Management Discussion and Analysis Quarter 1 Ending 31 Mar 2018 To The President The Stock Exchange of Thailand Indara Insurance Public Company Limited would

Manager of The Stock Exchange of Thailand Union Petrochemical Public Company Limited and its subsidiaries ("the Company") would like to clarify the operating results for the Year 2019 ended December 31

Ref Ref. 2S_BoD001/2020 February 26th, 2020 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand 2S Metal Public Company Limited

At Hor-For 0126/2550 August 8th, 2017 At Hor-For 0101/2560 Subject Notification of the performance of 2nd quarter ended June 30, 2017 Attn Directors and Manager, The Stock Exchange of Thailand We

At Hor-For 0126/2550 November 7th, 2017 At Hor-For 0133/2560 Subject Notification of the performance of 3rd quarter ended September 30, 2017 Attn Directors and Manager, The Stock Exchange of Thailand