9 August, 2018 Re Explanation and analysis of the Management for the 2nd. quarter of 2018 ended 30 June 2018 To Director and Manager, Stock Exchange of Thailand Whereas the Meeting No. 4/2561 of the

12 November, 2018 Re Explanation and analysis of the Management for the 3rd. quarter of 2018 ended 30 September 2018 To Director and Manager, Stock Exchange of Thailand Whereas the Meeting No. 5/2561

2nd quarter of 2020, the company and its subsidiaries gained the construction income of Baht 41.52 million from one of the subsidiaries whereas in the same quarter of 2019 was Baht 44.36 million showing

Unofficial translation FORM 35-E2 Letter of Consent (Inspection of the director and executive’s qualification on the company’s request) Attention: Secretary General, the SEC Office Whereas I

the Provinces? Project where more than 30 Project participants has listed their shares while the ?Pride in Thai Innovative and Creative Businesses? Project has been launched to support expansion of

of the Provinces? Project where more than 30 Project participants has listed their shares while the ?Pride in Thai Innovative and Creative Businesses? Project has been launched to support expansion of

inventory to net realizable value amounting of Baht 2.0 million in 2018, whereas there was an increase of Baht 1.0 million in 2017. And there was a decrease in depreciation and amortization cost amounting of

amounting Baht 1.0 million. In addition, there was an increase of reduction cost of inventory to net realizable value amounting of Baht 1.0 million in 2017, whereas there was no such transaction in 2016. The

accounts of Baht 10.0 million resulting from liquidity problem of one major accounts receivable, whereas there was a reversal of Baht 1.0 million in Q2/2017. In addition, there was an increase of reduction

18.0 million from Baht 151.1 million in 2018 to be Baht 133.1 million, or 11.97% decreased. This was due to an increase in Allowance for doubtful accounts of Baht 21.8 million in 2018 whereas there was a