1 RP-AC 003/2019 AUGUST 13, 2019 Subject: Clarification of the operating results for the second quarter of 2019 To: Directors and Managers of the Stock Exchange of Thailand Richy Place 2002 Public

บริษัท ยูนิค ไมนิง เซอร์วสิเซส จาํกัด (มหาชน) ทะเบียนเลขที 0107547000095 Unique Mining Services Public Company Limited Registration 0107547000095 26/23 อาคารอรกานต์ ชัน 7 ซอยชิดลม ถนนเพลินจิต แขวง

349 SJ Infinite I Business Complex, Unit 1507, 15th Floor, Vibhavadi-Rangsit Road, Chompol, Chatuchak, Bangkok, 10900 Tel. 02 075 5667-8 Fax. 02 075 5669 Website: www.eicasia.net Page 1 of 4

November 12, 2004 1/5 (-Translation-) Ref. No. SorNor. 035/2018 August 10, 2018 Subject: Clarification of Operating Results and Financial Status for the three-month period and the nine-month period

1 RP-AC 004/2018 NOVEMBER 14, 2018 Subject: Clarification of the operating results for the third quarter of 2018 To: Directors and Managers of the Stock Exchange of Thailand Richy Place 2002 Public

No. CAZ 1/2019 21st January 2019 Subject: Management Discussion and Analysis Quarter 3rd ending 30 September 2018 Attention: The President The Stock Exchange of Thailand CAZ (Thailand) Public Company

A-1 CODE OF CONDUCT FUNDAMENTALS FOR CREDIT RATING AGENCIES THE BOARD OF THE INTERNATIONAL ORGANIZATION OF SECURITIES COMMISSIONS REVISED MARCH 2015 A-2 CODE OF CONDUCT FUNDAMENTALS FOR CREDIT RATING

1 RP-AC 004/2019 NOVEMBER 13, 2019 Subject: Clarification of the operating results for the third quarter of 2019 To: Directors and Managers of the Stock Exchange of Thailand Richy Place 2002 Public

1 RP-AC 003/2020 AUGUST 14, 2020 Subject: Clarification of the operating results for the second quarter of 2020 To: Directors and Managers of the Stock Exchange of Thailand Richy Place 2002 Public

Microsoft Word - MDA_Q317_DTC_Eng_V2 Dusit Thani PCL Management Discussion and Analysis For 3Q17 and 9M17 P a g e | 1 Executive Summary The Company reported net loss of THB 55 million and THB 23