No: AH 02022023 February 28th, 2023 Subject: Management Discussion & Analysis (MD&A) for the financial statements of fiscal year 2022 ended as of December 31, 2022 To: The President The Stock Exchange

June 30th, 2023 To: The President The Stock Exchange of Thailand AAPICO Hitech Public Company Limited (“the Company”) would like to explain the consolidated financial statements of the Company for the

Microsoft Word - ACE MDA Q2 23 - EN 1 No. ACE-ACC-3/2023 11 August 2023 Subject Management Discussion and Analysis for the period ended 30 June 2023 To President The Stock Exchange of Thailand

. 1Q2017 vs. 4Q2017 UNIT: million baht 1Q2018 1Q2017 % yoy 4Q2017 % qoq Sales Revenue 4,631 4,246 9% 5,219 -11% EBITDA 211 312 -32% 387 -45% EBITDA Margin (%) 4.6% 7.3% -2.7% 7.4% -2.8% Stock Gain/(Loss

UNIT: Million Baht 1Q2020 1Q2019 % YoY 4Q2019 % QoQ Sales Revenue 5,227 2,816 86% 3,842 36% EBITDA 345 141 145% 226 53% EBITDA Margin (%) 6.6% 5.0% 1.6% 5.9% 0.7% Stock Gain/(Loss) & NRV 92 -74 -224% -13

19% 5,227 -25% 9,158 6,106 50% EBITDA -120 88 -236% 345 -135% 225 229 -2% EBITDA Margin (%) -3.1% 2.7% -5.8% 6.6% -9.7% 2.5% 3.8% -1.3% Stock Gain/(Loss) & NRV -374 -58 545% 92 -507% -282 -132 114

- Transalation - No. AEC 321/2018 November 12, 2018 Subject: Disposition of Assets of AEC Securities Public Company Limited (Amendment) Attention: President The Stock Exchange of Thailand AEC

Operation of the Year 2019 Attention: Directors and Manager, The Stock Exchange of Thailand N.D. Rubber Public Company Limited (“the Company”) would like to present the MD&A for the Three- Month and Twelve

explanation and analysis Quarter 1/2020 ending 31 March 2020 Attention: The President of, The Stock Exchange of Thailand ZIGA Innovation Public Company Limited (“the Company”) would like to clarify operating

Ref. No. 1805/025EN May 14, 2018 Subject Management Discussion and Analysis for Q1/2018 (Ending March 31, 2018) To Director and Manager of the Stock Exchange of Thailand Ubis (Asia) Public Company