operating results for the 3-month period and 6-month period ending June 30, 2017 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its Subsidiary (together

Ref. DBP. 141 / 2017 November 13, 2017 Subject : Clarification on Operating Results for the 3-Month Period and 9-Month Period ending September 30, 2017 To : President The Stock Exchange of Thailand

with the Notification of the Capital Market Supervisory Board No. TorChor 20/2551 Re: Rules on Entering into Material Transactions Deemed as Acquisition or Disposal of Asset dated 31 August 2008 (as

disposal of assets in accordance with the Notification of the Capital Market Supervisory Board No. TorChor 20/2551 Re: Rules on Entering into Material Transactions Deemed as Acquisition or Disposal of Asset

operating results for year 2019. 2. Resolved to propose to 2020 Annual General Shareholder Meeting to consider and approve the omission of appropriation of earnings for legal reserve and the omission of the

February 26, 2018 To: The President The Stock Exchange of Thailand Re: 2017 operating results We, Delta Electronics (Thailand) Public Company Ltd, would like to notify the Company’s 2017 operating

was 1.1x while interest coverage ratio stood at 13x. Cash flow In 1H19, operating cash flow was Bt38,000mn increasing 10% YoY from EBITDA expansion and a settlement in international roaming charges. The

Summary Significant Events Operating Highlights in Q1/2023 Q1/22 Q1/23 Change +/(-) (THB million) %YoY Operating Revenue 198 264 33% Gross Profit 120 168 40% EBITDA 58 80 38% Net Profit (Loss) for the

2.03 27% Core EBITDA/t (US$/t)) 107 100 94 14% 97 86 13% Net Operating Debt to Equity 0.84 0.80 0.99 0.84 0.99 Note: (1) Consolidated financials are based upon elimination of intra-company (or intra

/2018, held on 19 July 2018 has the resolutions as follows: 1. To dispose all investments in Nation U Co., Ltd. (“NU”) (a subsidiary of the Company holding the license and operating the Nation University