Waterhouse Co., Ltd. • Member, Board of Governors, Stock Exchange of Thailand • Academic Member, Accounting Profession Supervision Council, Ministry of Commerce • President, Institute of Certified Accountants

Activity Report 2016_En INDEPENDENT AUDIT INSPECTION ACTIVITIES REPORT 2016 INDEPENDENT AUDIT INSPECTION ACTIVITIES REPORT 2016 Executive Summary...................02 Quality Assurance Review Panel................04 Activities for Enhancing Audit Quality...................05 Summary of Audit Inspection Results A. Firm Level...................08 B. Engagement Level...........................28 Root Cause Analysis...................42 Framework and Focuses in 2017...................44 Essential St...

1/8 เลขท่ี 1 อาคาร ทีพี แอนด์ ที ชัน้ 14 ซอยวิภาวดีรังสติ 19 14th Floor, TP&T Tower 1 Soi Vibhavadee-Rangsit 19 Tel : (662) 936-1661-2 แขวงจตจุกัร เขตจตจุกัร กรุงเทพฯ 10900 Chatuchak, Chatuchak, Bangkok 10900, Thailand Fax : (662) 936-1669 ทะเบียนเลขท่ี 0107554000097 Registration No. 0107554000097 HYDROTEK PUBLIC COMPANY LIMITED บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) (Translation) No. 079/0960 25 September 2017 Subject: Notification of the Board of Directors No.8/2017 and the date of the Extraordinary...

1/8 เลขท่ี 1 อาคาร ทีพี แอนด์ ที ชัน้ 14 ซอยวิภาวดีรังสติ 19 14th Floor, TP&T Tower 1 Soi Vibhavadee-Rangsit 19 Tel : (662) 936-1661-2 แขวงจตจุกัร เขตจตจุกัร กรุงเทพฯ 10900 Chatuchak, Chatuchak, Bangkok 10900, Thailand Fax : (662) 936-1669 ทะเบียนเลขท่ี 0107554000097 Registration No. 0107554000097 HYDROTEK PUBLIC COMPANY LIMITED บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) (Translation) No. 082/0960 25 September 2017 Subject: Notification of the Board of Directors No.8/2017 and the date of the Extraordinary...

1/8 เลขท่ี 1 อาคาร ทีพี แอนด์ ที ชัน้ 14 ซอยวิภาวดีรังสติ 19 14th Floor, TP&T Tower 1 Soi Vibhavadee-Rangsit 19 Tel : (662) 936-1661-2 แขวงจตจุกัร เขตจตจุกัร กรุงเทพฯ 10900 Chatuchak, Chatuchak, Bangkok 10900, Thailand Fax : (662) 936-1669 ทะเบียนเลขท่ี 0107554000097 Registration No. 0107554000097 HYDROTEK PUBLIC COMPANY LIMITED บริษทั ไฮโดรเท็ค จ ำกดั (มหำชน) (Translation) No. 084/0960 26 September 2017 Subject: Notification of the Board of Directors No.8/2017 and the date of the Extraordinary...

and effective oversight of the accounting and audit profession. (ii) Securities commissions and stock exchanges should require listed companies to disclose on a timely basis any change of auditors and

delegate its duty to other persons except where: (1) the trust instrument provides otherwise; (2) it is a transaction that is not personal in nature and needs no capability of trustee’s profession; (3) it is

not personal in nature and needs no capability of trustee’s profession; (3) it is a transaction that a reasonable prudent owner of the property of the same characteristics as the trust property, who

transaction that is not personal in nature and needs no capability of trustee’s profession; (3) it is a transaction that a reasonable prudent owner of the property of the same characteristics as the trust

of audit firms has been an ongoing challenge, as a result of high turnover rates, coupling with low interests in this profession. With this concern in mind, the SEC and the Association of Chartered