. Quality Construction Products Public Company Limited (“Q-CON”) would like to clarify the main reason that caused operating result of the second quarter of 2017 changed more than 20 percent that of 2016. Q

excluding the unrealized gain (loss) on foreign exchange, the Company had a net loss of 28.19 million baht this year and 24.15 million baht last year. The decrease in net operating result was due to the long

September 2017. Quality Construction Products Public Company Limited (“Q-CON”) would like to clarify the main reason that caused operating result of the third quarter of 2017 changed more than 20 percent that

- Translation - MPIC 014/2017 November 8, 2017 Subject: Submit the Financial Statement for the quarter ended September 30, 2017 and clarification for the change of operating result more than 20

Ref Ref. 2S_BoD031/2017 November 8th, 2017 Subject: Clarification of the change in operating result more than 20% To : The president The Stock Exchange of Thailand 2S Metal Public Company Limited

project recruitment. Financial cost decreased 30.79 percent, due to the repayment of long term debt. As a result, cost of goods sold and expenses increased 12.01 percent from the same period of last year. 3

- Translation - MPIC 002/2018 February 14, 2018 Subject: Submit the Year End Financial Statement ended December 31, 2017 and clarification for the change of operating result more than 20% Attention

branch office, comprising at least an efficient system for operational management, compliance management, information management and preparation of competent personnel. 4.4 Having the result of the latest

Third Quarter result Million Baht 2019 2018 Sales 1,684.72 2,020.38 Cost of Sales 1,586.08 1,935.80 Gross Margin 98.64 84.58 Gain (loss) on exchange rates 21.83 42.47 Other Incomes 4.97 9.30 Total

จดหมายชี้แจงปี61e February 27, 2019 The Managing Director The Stock Exchange of Thailand Subject : Management Discussion and Analysis Ending 31 December 2018 Summary of operating result between 2018