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

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

) Attention: President The Stock Exchange of Thailand Reference Letter: The Letter of the Company dated 10 April 2018 re: Acquisition and Disposition of Assets Pace Development Corporation Public Company

AC2802/2018 February 28, 2018 Subject: Management Discussion and Analysis for Year2017 To: Managing Director The Stock Exchange of Thailand The company would like to report the operation results for

Microsoft Word - MDA-EN-Apr2017-Jun2017-11Aug2017.doc 1 11 August 2017 Subject: Explanation of operating result in the financial statement ended 30 June 2017 To: Directors and Managers of the Stock

November 10, 2017. Re: Management Discussion and Analysis for the period 3 months September 30, 2017. To: The Registrar, Stock Exchange of Thailand. Patkol Public Company Limited : Management

1 10 November 2017 Subject: Explanation of operating result in the financial statement ended 30 September 2017 To: Directors and Managers of the Stock Exchange of Thailand With reference to the

1 12 February 2018 Subject: Explanation of operating result in the financial statement ended 31 December 2017 To: Directors and Managers of the Stock Exchange of Thailand With reference to the

May 11, 2018 Re: Management Discussion and Analysis for the period 3 months March 31, 2018 To: The Registrar , Stock Exchange of Thailand Patkol Public Company Limited: Management Discussion and

May 15, 2018 Subject: Managing Discussion and Analysis for Q1/2018 To: Managing Director The Stock Exchange of Thailand The company would like to report to operation results for the company and