Microsoft Word - letY17EMD&A .doc (Translation) 23rd February 2018 Subject: Management Discussion and Analysis (MD&A) of year 2017 To: Managing Director of the Stock Exchange of Thailand Business

February 28, 2020 Ref: SET-2020-003 Re: Management Discussion and Analysis for the year 2019 Attn. to: President The Stock Exchange of Thailand Filter Vision Public Company Limited and its

ที่ กตพ Ref. DBP. 108 / 2019 August 13, 2019 Subject : Clarification on Operating Results for the 2nd quarter and 6-month Period ending June 30, 2019 To : President The Stock Exchange of Thailand

Ref. DBP. 153 / 2019 November 11, 2019 Subject : Clarification on Operating Results for the 3rd quarter and 9-month Period ending September 30, 2019 To : President The Stock Exchange of Thailand

PROJECTS UNDER CONSTRUCTION NON-OPERATING ITEMS 2016 2017 % change million Baht million Baht y-on-y Other revenues 172 187 8.9% Share of profit (loss) of associates 261 256 -2.0% Gain (Loss) on exchange rate

Nation U Co., Ltd., the subsidiary of the Company, and change in the accounting policy regarding the record of the land valuation To: Director and Manager The Stock Exchange of Thailand (SET) Attachment

Ref. DBP. 024 / 2020 February 25, 2020 Subject : Clarification on Operating Results of Year 2019 To : President The Stock Exchange of Thailand Diamond Building Products Public Company Limited and its

Ref. DBP. 066 / 2020 May 11, 2020 Subject : Clarification on Operating Results for the 1st Quarter ending March 31, 2020 To : President The Stock Exchange of Thailand Diamond Building Products Public

, -6.7%YoY, but increasing +3.3%QoQ from unrealized foreign exchange gain. Reported net profit ( post- TFRS 16) stood at Bt7,001mn, slightly decreased by bt234mn compared to PRE - TFRS 16 adoption. 5 2Q20

5G investment. Net profit was Bt6,374mn, decreasing - 2.1% YoY mostly due to unrealized foreign exchange loss and increase in D&A and -9.5% QoQ from one- time income in 2Q21. Excluding foreign exchange