Page 1 of 3 May 10, 2019 Re: Management Discussion and Analysis for Quarter 1/2019 (March 31 ,2019) To: Director and Manager of the Stock Exchange of Thailand Patkol Public Company Limited and its

No No. CC20190505ELE May 14, 2019 Re: Clarification of the changes in operation performance for the first quarter ended 31 March 2019 Attn: The President The Stock Exchange of Thailand Cal-Comp

IN NET PROFIT OVER 20 PERCENT FOR THE 2nd QUARTER YEAR 2019 COMPARE TO THE PREVIOUS YEAR ATTENTION PRESIDENT, THE STOCK EXCHANGE OF THAILAND Khon Kaen Sugar Industry Public Company Limited and its

MMS-AC62/013 August 7, 2019 Subject: Management Discussion and Analysis of Operating Results for 2Q19 ending June 30, 2019 To: The President of the Stock Exchange of Thailand Matching Maximize Solution

1 8 August 2019 Subject: Explanation of operating result in the financial statement ended 30 June 2019 To: President The Stock exchange of Thailand With reference to the financial statement of Q1

August 8, 2019 SET-19-AC-003 Dear The President The Stock Exchange of Thailand Subject: Clarification of Result’s Operation for the six months ended June 30, 2019 According to the resolution of BKD’s

หนังสือแสดงการรับทราบความผิด 11 May 2018 Subject : Management Discussion and Analysis of the first quarter 2018 ended 31 March 2018 Attn. : Director and Manager The Stock Exchange of Thailand Encls

-9320 1 Ref: PLC 2018/009 May 11, 2018 Subject: Management Discussion and Analysis Quarter 1 Ended 31-Mar-2018 To: The President of the Stock Exchange of Thailand Panjawattana Plastic Public Company

-Translation- 1 -Translation- Ref. NCH 033/2018 May 14, 2018 Subject : Management’s Discussion and Analysis 1Q/2018 Attention : President The Stock Exchange of Thailand N.C. Housing Plc. (“the

หนา้1/2 (Translation) Ref. JCKH 014/2561 May 15, 2018 Subject: Management Discussion and Analysis for the Quarter 1/2018 To: The President The Stock Exchange of Thailand CC: The Secretary General The