ครอบคลุมการดำเนินการอย่างน้อย ดังนี้ (ก) กำหนดผู้รับผิดชอบต่อความเสี่ยง หรือเจ้าของความเสี่ยง (risk owner) (ข) ระบุการควบคุมที่มีอยู่ในปัจจุบัน (existing control) (ค) วิเคราะห์โอกาสหรือความถี่ที่จะเกิด

entity or natural person, as well as the nature of such control. To the extent known to the issuer, indicate whether the issuer is directly or indirectly owned or controlled by another corporation, by any

29 percent of shares of NYKT (“NYKT Shares”) from Artlion Development Limited (“ArtLion”) which is a subsidiary of and under the control of NYK Group. The purchase of NYKT Shares is regarded as a

tower, design and distribute steel structure according to the drawing, power distribution and heat energy business, construction and tunneling contractor and distribution of industrial products. In the

person, as well as the nature of such control. To the extent known to the issuer, indicate whether the issuer is directly or indirectly owned or controlled by another corporation, by any foreign government

3.2 Investment management system 3.3 Back office supporting system 3.4 Compliance system 3.5 Documentary preparation and record keeping system Chapter 4 Internal Control System Chapter 1 Organisational

management system 3.3 Back office supporting system 3.4 Compliance system 3.5 Documentary preparation and record keeping system Chapter 4 Internal Control System Page 2 of 32 (Unofficial Translation) Chapter 1

, Transmission Line both of Overhead Line and Underground Line, Conduit Tunnel and Drainage Tunnel, Renovating of the conventional substation control system to Computer base Substation Control System, with

3.46 million baht or 3.74% from sale revenue with is 0.8 million baht or 23.12% decreased came from the compact of restructuring of the organization thus the better control in delivery expenses.. 4

million or 2% from Q1/2020 • However, EBITDA margin in Q1/2021 was 31.5%, increased by 5.1% from Q1/2020 as a result of the effective control of selling and administrative expenses under the implementation