-Translation - Ref. APURE 002/2019 February 22, 2019 Subject : Financial Position and Operating Performance of year 2018 Attention : The Director and President of the Stock Exchange of Thailand

, www.getabecboiler.com No. GTB-AC001/2562 22 February 2019 Subject: Management Discussion and Analysis for the year ended December 31, 2018 To: Managing Director The Stock Exchange of Thailand Getabec Public Company

the year 2018 Attn: Director and Manager, The Stock Exchange of Thailand With respect to the financial statements for the year 2 018 , as submitted by the Company, which has been audited by the external

| www.digitaltechplanet.com No. DIGI 201902/009 26 February 2019 Subject: Management Discussion and Analysis - Explanation of net profit (loss) for the year ended 31 December 2018. To: The President of Stock Exchange of

DATE: 1 NPPG.015/2019 February 26, 2019 Subject Management’s Discussion and Analysis for the year 2018 Attention The President The Stock Exchange of Thailand Management’s Discussion and Analysis (MD

November 14, 2019 Subject : Management Discussion and Analysis for Nine-month and 3nd quarter ended November 30, 2019 Attention : President The Stock Exchange of Thailand 1. Operating Performance 1.1

I - Translation - Ref : LPH/SET 2020/004 February 25, 2020 Subject : Clarification on the Operating Results for Year 2019 period ended December 31, 2019 To : President The Stock Exchange of Thailand

Microsoft Word - MD&A SET 2019 ENG.doc Page 1 of 2 February 21, 2019 Re: Management Discussion and Analysis for the year December 31 ,2019 To: Director and Manager of the Stock Exchange of Thailand

Microsoft Word - el303e Date : February 27, 2020 Subject : Management Discussion and Analysis for the year ended December 31, 2019 To : Managing Director The Stock Exchange of Thailand Kuang Pei San

The Stock Exchange of Thailand The Board of Directors Meeting of O.C.C. Public Company Limited No. 5/2560 held on August 8, 2017 had resolved to approve investment in capital increase shares of