IDH-AC-000-อส6302/30.00 20 February 2020 Re: Management Discussion and Analysis Operating results for the year ended 31 December 2019 To: President The Stock Exchange of Thailand Overview of the

Page 1 of 3 T.K.S. TECHNOLOGIES Unit: % Y2019 Y2018 As Reported (% to Sales) Gross profit margin 21.3% 21.0% TKS 23.4% 23.6% TBSP 18.6% 16.9% Gross profit margin in 2019 was 21.3% in comparison to

Exchange of Thailand With respect to the financial information for the 1st quarter ended 31 March 2020, as submitted by the Company, which has been audited by the external auditor, considered by the Audit

& distribution expenses were 2.39 percent, increased when comparing to 2.06 percent of revenue from sales and service in the same period of previous year. This is due to the decrease in sales due to the impacts on

21.2% compared to the same period last year. The primary reason is the decrease in cost of sales of real estate and distribution costs which normally vary according to the decrease in revenue from sales

1/4 August 13, 2020 Re: Clarification of the operating results of company and its subsidiaries for the six months period end June 30, 2020 To: President The Stock Exchange of Thailand K.C. Property

August 2020 Subject: Management Discussion and Analysis for the Performance for the six-month period ended 30 June 2020 To: President The Stock Exchange of Thailand The Board of Directors of Wow Factor

million. 1.3 The company had revenue from design and distribution of boat and minibus made by aluminum for 2nd quarter of 2020 in the amount of 1.30 million decreased from 2nd quarter of 2019 due to the

No. INGRS066 30 March 2021 Subject : Management Discussion & Analysis (MD&A) for the consolidated financial statements for the financial year ended 31 January 2021 To : The President The Stock

distribution of electricity from solar energy. Previously, 49% of BSF3's investment was made to purchase additional 132,000 shares from existing shareholders at par value of 100 baht, equivalent to 13,200,000