1 / 4 No.IR.002/2018 22 February 2018 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

Mr.Suthee Siripornpitak During the period of 18 August 2021 (afternoon trading session) to 31 August 2021, Mr.Suthee Siripornpitak colluded with Mr. Peeranut Siripornpitak, to manipulate the stock

the share price manipulation of Chai Watana Tannery Group PLC (CWT) by handling the trading orders of CWT shares for a group of persons. She also traded CWT shares for herself through Mr. Payut

Mr.Trairath Treeratpant Mr.Trairath Treeratpant agreed or conspired with twelve other persons to manipulate the price and trading volume of The Union Mosaic Industry Public Company Limited (UMI

Mr. Promakran Srinarong Mr. Promakran Srinarong agreed or conspired with twelve other persons to manipulate the price and trading volume of The Union Mosaic Industry Public Company Limited (UMI

Mr. Prabpol Singtong Mr. Prabpol Singtong agreed or conspired with twelve other persons to manipulate the price and trading volume of The Union Mosaic Industry Public Company Limited (UMI) shares by

Mr. Siwasit Sainumphung Mr. Siwasit Sainumphung agreed or conspired with five other persons to manipulate the price and trading volume of Yong Thai Public Company Limited (YCI) shares by trading such

and Service 962.18 1,113.20 -151.02 -13.57% Total Revenue 965.81 1,117.55 -151.74 -13.58% Net Profit for the Year 64.54 208.53 -143.99 -69.05% Net Profit for Shareholders of the Company 51.03 174.29

(%) Revenue from Sales and Service 230.39 240.31 -9.92 -4.13% Total Revenue 238.67 240.72 -2.05 -0.85% Net Profit for the Year 22.10 18.52 3.58 19.33% Net Profit for Shareholders of the Company 18.79 13.30 5.49

revenue from bad debt recovery continued growing by 18% y-y and the revenue from overseas subsidiaries grew by 10% y-y. Details of each business can be described as follows: Profit and Loss Statement