. Dear sir, We, Unimit Engineering Public Company Limited (UEC) , would like to clarify the change in operating result for Q1/2018 which changing over 20% from the same period last year as follows ; Unimit

to submit our management’s discussion and analysis for the fiscal year ended December 31, 2019, as follows: For the year ended December 31 Change 2019 2018 MB MB % Sales revenue 371.33 316.83 17.20

ที่ BCH No. BCH.174/2017 15 August 2017 Subject : Explanation of the change in operating results of Q2/2017 which exceed 20% To : The President The Stock Exchange of Thailand Bangkok Chain Hospital

ที่ BCH No. BCH.211/2017 8 November 2017 Subject : Explanation of the change in operating results of Q3/2017 which exceed 20% To : The President The Stock Exchange of Thailand Bangkok Chain Hospital

Operation change from same period more than 20% Attention : The President The Stock Exchange of Thailand T.C.J. Asia Public Company Limited (“TCJ”) and its subsidiaries herewith submit the clarification of

No. AC 070/2018 KHON KAEN SUGAR INDUSTRY PUBLIC CO., LTD 503 K.S.L. TOWER, 9th FLOOR, SRIAYUDHYA ROAD, RAJATHEVI, BANGKOK 10400 14 June 2018 SUBJECT EXPLANATION FOR THE CHANGE IN PERFORMANCE OVER 20

of last year The explanation for Company’s Operation change from same period more than 20% To The President The Stock Exchange of Thailand T.C.J. Asia Public Company Limited (“TCJ”) and its

management’ discussion and analysis for the 1st quarter in 2020, ended March 31st, 2020 as per herebelow : 3-Month Period Ended March 31st Change 2020 2019 % MB MB Sales Revenue 97.13 84.93 14.36 Total Revenue

Discussion & Analysis Q3/2021 Operating Highlights in Q3/2021 Q3/20 Q3/21 Change +/(-) 9M/20 9M/21 Change +/(-) (THB million) %YoY %YoY Operating Revenue 198 115 (42%) 561 431 (23%) Gross Profit 124 60 (52

JAS Asset Public Company Limited Q1/2017 Q1/2018 Change MB. % MB. % MB. % Tax -0.1 -0.1% 3 1.7% 3.1 -3,100.0% Net Profit attribute to Shareholders (Loss) -4.0 -2.2% 0.4 0.2% 4.4 -8.1% Rental and Service