ที่ กตพ Ref. DBP. 030 / 2019 February 20, 2019 Subject : Clarification on Operating Results of Year 2018 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited

for the first quarter ended March 31, 2020 Attention The President The Stock Exchange of Thailand Attachment Report and interim financial statement for the first quarter ended March 31, 2020 Firetrade

accordance with 15 percent or more but lower than 50 percent . On that basis, the Company is obligated to disclose information pertaining to the Class 2 transaction to the Stock Exchange of Thailand (“the SET

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No. CAZ 002/2019 26 February 2019 Subject: Management Discussion and Analysis Year ended 31 December 2018 Attention: The President The Stock Exchange of Thailand CAZ (Thailand) Public Company Limited

-Translation- 1 -Translation- Ref. NCH 008/2020 February 28, 2020 Subject: Management Discussion and Analysis Yearly Ending 31 Dec 2019 Attention: President The Stock Exchange of Thailand N.C

February 26, 2017 Subject : Management Discussion and Analysis for year and 4th quarter ended December 31, 2017 Attention : President The Stock Exchange of Thailand 1. Operating Performance

: Management Discussion and Analysis for the 3rd Quarter ended 30 September 2020 To: The President The Stock Exchange of Thailand Operating results of S 11 Group Public Company Limited (“the Company”) for the

OVER 20 PERCENT FOR THE 3rd QUARTER YEAR 2019 COMPARE TO THE PREVIOUS YEAR ATTENTION PRESIDENT, THE STOCK EXCHANGE OF THAILAND Khon Kaen Sugar Industry Public Company Limited and its subsidiaries (“KSL

., and Schedule for the EGM of Shareholders No. 1/2019 (Revised2) To: The President The Stock Exchange of Thailand Enclosure: 1. Information Memorandum of Hydrotek Public Company Limited on Disposal of