Re: Preparation and Disclosure of Financial Statements of Derivatives Exchange and Derivatives Clearing House

-1 1 Ref. LPN/SorKor/098/2564 6th May 2021 Re: Financial Statements Analysis Report Q1/2021 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co.,Ltd. would like to submit the

-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

any false statements or omits to state any material information which should have been disclosed, the securities holders shall be entitled to claim damages from the securities offeror or the securities

-1 1 Ref. LPN/SorKor/119/2563 7th May 2020 Re: Financial Statements Analysis Report Q1/2020 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co.,Ltd. would like to submit the

Re: Exemption from the Requirements to Submit Registration Statements for the Offer for Sale of Debt Securities

Rules, Conditions and Procedures for Filing of Annual Financial Statements and Preparation of Reports of the Stock Exchange of Thailand

value is derived from this method of calculation, whereby the calculation is based on the Company's reviewed consolidated financial statements for the 6-month period as of 30 June 2018 of the Company

-1 - Translation - Ref. LPN/SorKor/386/2562 7th November 2019 Re: Consolidated Financial Statements Analysis Q3/2019 Dear: President The Stock Exchange of Thailand L.P.N. Development Public Co., Ltd

submit the financial statements through the One For All Reporting System of the SEC Office within the period specified in the notification which are (1) the financial statements for the six-month periods