หน้า 1 จาก 1 Translation November 12, 2018 Subject: Management explanation and analysis for Quarter ended 30 September 2018 Attn: The Managing Director, the Stock Exchange of Thailand Pacific Pipe

Intaranukulkij Managing Director

and gross margin has been higher. Please be advised accordingly. Yours Faithfully, Prasertsak Suwanpotipra Managing Director

(Translation) (Translation) IR 024/18 November 14, 2018 President and Director The Stock Exchange of Thailand Subject : To explain the reasons on the company’s net profit (net loss) more than 20

) Director

December 3, 2018 Re: Assistance financial to the related companies. To: Director and Manager of Stock Exchange of Thailand According to the Board of meeting of D.T.C. Industries Plc. No. 6/2018 on

transactions are less than 15% of the total assets of the Company and this transaction is not classified as a connected transaction. Yours sincerely, Mr. Itthirit Wipoosiri Managing Director

of a director / an executive / an auditor ช่ือ / Name …………………………. ………………………………………. หุนกูแปลงสภาพ (Convertible debenture) ขาพเจาขอรับรองวาขอมูลที่รายงานขางตนนี้ครบถวนและเปนความจริงทุกประการ I

amount of Baht 3.43 million due to the tax effects on timing difference of taxable income and expenses. Please be informed accordingly. Yours sincerely (Mr. Wichai Intaranukulkij) Managing Director

Translation - 2 - The company hereby reports to the SET accordingly. Sincerely yours, Boondee Amnuayskul (Mr. Boondee Amnuayskul) Chief Executive Officer and Managing Director