Page 1 of 4 May 11, 2018 Subject : Operating Result Quarter 1 Ending March 31, 2018 To : The President The Stock Exchange of Thailand WICE Logistics Public Company Limited would like to clarify the

26 February 2018 Subject: Management Discussion and Analysis for the Year Ended December 31, 2017 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

15 May 2018 Subject: Management Discussion and Analysis for the 3-Month Period Ended March 31, 2018 To: Directors and Managers The Stock Exchange of Thailand Halcyon Technology Public Company Limited

the Three-month and Six-month Periods Ended 30 June, 2019 Page 1 (Translation) 1. Significant events of the 2 nd quarter of 2019 1.1 Change of the Company’s name and seal On April 12, 2019, the 2019

) Attention 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

No.012/2018 May 09, 2018 Subject: Report the operating result for the 1st Quarter ended March 31, 2018 and the explanation for the causes of change more than 20% in the Company’s performance To: The

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

August 11,2010 May 11, 2017 Re : Clarification on percentage of change more than 20% in Q1/2017 To : Director and Manager of the Stock Exchange of Thailand Revenue from sales The Company's revenue

No.019/2017 August 11, 2017 Subject: Report the operating result for the 2nd Quarter ended June 30, 2017 and the explanation for the causes of change more than 20% in the Company’s performance To

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