operating results of the third quarter of 2018, ended 30 September 2018 To Director and Manager The Stock Exchange of Thailand The Board of Director’s meeting No. 7/2018 of General Engineering Public Company

the full effect of Saraburi Quicklime addedon March 19th. Similar to Q1 2018, the revenue was from core business, that is a major shift compared with H1 2017 when the contribution of Engineering was a

increased 121.20 million baht or 11% from 1,111.90 million baht in the nine months of year 2017 to 1,233.10 million baht in the nine months of year 2018. The main increase was derived from the engineering

engineering. A similar impact is seen year to date where core business is running well beyond the same period in 2017 while the impact from lack of engineering contribution is a drag. We do expect Golden Lime

Subject : Clarification of the operating result. Dear sir, We, Unimit Engineering Public Company Limited (UEC), would like to clarify the change in the operating results for Q2/2020 which has had a change

Thailand The Board of Director’s meeting No. 1/2020 of General Engineering Public Company Limited (“the Company”) held on March 2, 2020 has approved and verified the financial statements of the Company and

consumer sentiment worsened. As in the previous quarter, in Q4 the main lime consuming sectors of the industry were impacted by the macro economy. However, despite the current challenges in the economy

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

1 / 3 No.IR.003/2019 28 February 2019 Re: Notification of the changes of the Profit and Loss Statement To: President Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited

1 / 3 IR.031/2020 13 August 2020 Re: Notification of the changes of the Profit and Loss Statement To President The Stock Exchange of Thailand We, T Engineering Corporation Public Company Limited (the