Public Company Limited and its subsidiaries had the operation results for the 3-month period ended 31 March 2020 with the following details: unit: THB million 2020 2019 Change (THB mill.) Change

Change Million Baht % Million Baht % Million Baht % Sales revenue - net 406.55 91.50% 361.42 91.88% (45.13) -12.49 % Revenue from contract works 32.46 7.31% 26.40 6.71% (6.06) -22.96% Revenue from service

Ref Ref. 2S_BoD017/2019 November 13th, 2019 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand The Board of Directors’ meeting of

Ref Ref. 2S_BoD031/2017 November 8th, 2017 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand 2S Metal Public Company Limited

/ year 2016 Quarter 3 / year 2017 Change Million Baht % Million Baht % Million Baht % Sales revenue - net 321.11 92.14% 288.17 93.39% -32.94 -10.26% Revenue from contract works 23.25 6.67% 16.90 5.48

President The Stock Exchange of Thailand K.C. Metalsheet Public Company Limited (“the Company”) would like to clarify the operating result of the financial statement as follows: year 2016 year 2017 Change

by the end of accounting period (as of December 31, 2018 and 2017). - Other income from gain arising from change in fair value of biological assets which increased by amount of Baht 12 million

decrease Baht 8.97 Million or 3.26%. - Cost of the sales and services from Q2/2018 was 89.50% increased to 91.75% on Q2/2019 or increased 2.25% from sales due to recorded the effect of the change severance

ชี้แจงภาษาอังกฤษไตรมาส2-2562 INTEGRITY QUALITY SERVICE SAHA-UNION GROUP August 13, 2019 RE : Explanation of change in operating results for the second quarter of 2019 exceeds twenty percent from the

1 / year 2018 Change Million Baht % Million Baht % Million Baht % Sales revenue - net 108.37 92.86% 107.94 93.48% (0.42) -0.39 % Revenue from contract works 7.14 6.12% 6.40 5.54% (0.75) -10.48