Sales Analysis and Sales and Administration Analysis The Gross Profit margin was 15% in Q317 up from Q316 at 14% due to increased sales volume. Page 1 of 3 Operating Profit Analysis Year‐on‐year operating

 5.2 billion for the first quarter of 2018 from THB 5.2 billion for the first quarter 2017.   Sales Revenue in USD terms increased 10% to USD 165m for Q1 2018 from USD 149m in Q1 2017. Operating Profits

THB 5.2 billion for the third quarter of 2019 from THB 6.0 billion for the third quarter 2018. Sales Revenue in USD terms decreased 8% to USD 168m for Q3 2019 from USD 182m in Q3 2018. Operating Profits

or “SORKON” and its subsidiaries (“the company”) would like to clarify the operating results for Quarter 2/2020 as follows: Revenue and Net Sales The Company recorded its total revenue of Baht 699.9

-Translation - Ref. APURE 002/2019 February 22, 2019 Subject : Financial Position and Operating Performance of year 2018 Attention : The Director and President of the Stock Exchange of Thailand

Microsoft Word - GSC MD&A 2019_Q4 - Eng 26.02.2020 -Translation- ELCIDGSC003/2020 Date : 26 February 2020 Subject : Clarification on the changes of the year end 31 December 2019 Operating results To

November 28, 2005 No. 10/2019 August 7, 2019 President The Stock Exchange of Thailand 93 Ratchadapisek Road, Kwang Dindaeng, Khet Dindaeng, Bangkok 10400 Subject : Clarification of the operating

Microsoft Word - GSC MD&A 2019_Q2 - Eng 08.08.2019 -Translation- ELCIDGSC018/2019 Date : 8 August 2019 Subject : Clarification on the changes of six months period end 30 June 2019 Operating results

November 28, 2005 No. 8 /2018 August 9, 2018 President The Stock Exchange of Thailand 93 Ratchadapisek Road, Kwang Dindaeng, Khet Dindaeng, Bangkok 10400 Subject : Clarification of the operating

Microsoft Word - GSC MD&A 2020_Q1 - Eng 12.05.2020 -Translation- ELCIDGSC010/2020 Date : 12 May 2020 Subject : Clarification on the changes of three months period end 31 March 2020 Operating results