To: President of the Stock Exchange of Thailand According to Seamico Securities Public Company Limited (“The Company”) reported the unreviewed operating result for the second quarter ended June 30

The Stock Exchange of Thailand The Meeting of Board of Directors of WHA Utilities and Power Public Company Limited (“Company”) No. 8/2017 on 29 September 2017 passed a resolution approving the Company

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

-1 -Translation- Ref. LPN/SorKor/146/2562 9th May 2019 Re: Financial Statements Analysis Report Q1/2019 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co.,Ltd. would like to

No. CAZ 007/2019 15 May 2019 Subject: Management Discussion and Analysis 1st Quarter ended 31 March 2019 Attention: The President The Stock Exchange of Thailand CAZ (Thailand) Public Company Limited

-1 - Translation - Ref. LPN/SorKor/217/2562 7th August 2019 Re: Consolidated Financial Statements Analysis Q2/2019 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co., Ltd

วันที่ 10 พฤษภาคม พ -Translation- 1 Ref. LPN/SorKor/208/2561 9th August 2018 Re: Consolidated Financial Statements Analysis Q2/2018 Dear: President The Stock Exchange of Thailand L.P.N. Development

วันที่ 10 พฤษภาคม พ 1 Ref. LPN/SorKor/289/2561 8th November 2018 Re: Financial Statements Analysis Report Q3/2018 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co.,Ltd

No. CAZ 1/2019 21st January 2019 Subject: Management Discussion and Analysis Quarter 3rd ending 30 September 2018 Attention: The President The Stock Exchange of Thailand CAZ (Thailand) Public Company

No. CAZ 1/2019 21st January 2019 Subject: Management Discussion and Analysis year ended 2017 ending 31 December 2017 Attention: The President The Stock Exchange of Thailand CAZ (Thailand) Public