(Translation) UAC.CS/012/2020 May 14, 2020 Subject: Explanation of the operating results for the first quarter period ended March 31, 2020 To: President The Stock Exchange of Thailand Attachment

Discussion and Analysis, Quarter 1 Ending 31 March 2020 (4) The Impact of the COVID-19 situation To: President of the Stock Exchange of Thailand Reference: (1) Document no. Tor. For. 4/2020 dated April 10

Ref: FASET 03/2562 August 23, 2019 Subject: Report the operating result for the second quarter and for the six–month period ended June 30, 2019 To: President of the Stock Exchange of Thailand Seamico

-Translation- 11 August 2017 Subject : The establishment of Vanachai Wood Smith Company Limited To : President The Stock Exchange of Thailand According to the meeting of board committee of Vanachai

-English translation- CS 7/2018 23 November 2018 Subject: Disposition of investment in White Group Public Company Limited To: President The Stock Exchange of Thailand With reference to the Board of

- Translation- OSP CS-3/2020 17 January 2020 Subject: Additional investment in Basecamp Brews Limited Attention: President Stock Exchange of Thailand We, Osotspa Public Company Limited (“the Company

-Translated Version- No. ECF2 032/2020 14 August 2020 Subject: Management Discussion and Analysis of the 2nd quarter and 6-month period ended 30 June 2020 To President The Stock Exchange of Thailand

31.28 38.76 123.91% Consolidated financial information The gross profit has increased by 25.89%, from Baht 194.24 Million in 2016 to Baht 244.53 million in 2017, due to following reasons: 1. Management

P a g e 1 | 7 Management Discussion and Analysis For the nine-month period ended September 30, 2017 The analysis of consolidated financial position as at 30 September 2017 The group’s assets

P a g e 1 | 8 Management Discussion and Analysis For the nine-month period ended September 30, 2017 The analysis of consolidated financial position as at 30 September 2017 The group’s assets