-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

(Translation) 14th November, 2017 Ref: SET-2017-020 Re: Management's Discussion and Analysis and operating results for the 3rd Quarter 2017 Dear: The President The Stock Exchange of Thailand Filter

-Translation- Ref. No. PorBor.025 / 2019 August 28, 2019 Subject: Entering into Transaction of Disposing of Subsidiary’s Land and Buildings for the Debenture Debt repayment (Additional information

, Tambol Ban Lane, Amphur Bangpa-in, Ayuthaya Province 13160, Thailand Tel (035) 350 880 Fax (035) 350 881 Website: www.aapico.com บริษัท อาปิโก ไฮเทค จ ากดั (มหาชน) AAPICO HITECH PUBLIC COMPANY LIMITED Ref

Ref.: EFORL IR010/2020 9 March 2020 Subject: Notification of resolution of Board of Director meeting, schedule of the 2020 Annual General Meeting of Shareholder, Dividend Omission and Acquisition and

Ref.: EFORL IR010/2020 9 March 2020 Subject: Notification of resolution of Board of Director meeting, schedule of the 2020 Annual General Meeting of Shareholder, Dividend Omission and Acquisition and

Ref. DBP. 025 / 2018 February 21, 2018 Subject : Clarification on operating results of Year 2017 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its

-Translation- Ref. No. PorBor.025 / 2019 August 28, 2019 Subject: Entering into Transaction of Disposing of Subsidiary’s Land and Buildings for the Debenture Debt repayment To: President The Stock

Eng_MD&A Q2'18 (Translation) August 14, 2018 Ref: SET-2018-016 Re: Management Discussion and Analysis for Quarter 2’ 2018 Attn. to: President The Stock Exchange of Thailand Filter Vision Public

-Translation- Ref. No. PorBor.025 / 2019 August 28, 2019 Subject: Entering into Transaction of Disposing of Subsidiary’s Land and Buildings for the Debenture Debt repayment (Additional) To: President