(Translation) Re: BOD.SET 014/2018 May 11, 2018 Subject: Clarification on the Change in operating results for the three month period ended March 31, 2018 over 20% compared with the same period of the

result. Dear sir, We, Unimit Engineering Public Company Limited (UEC) , would like to clarify the change in operating result for Q3/2018 which changing over 20% from the same period last year as follows

or 17.2% due the drastic decline in Ethylene and Glycerin price from ample supply plus lower crude oil price. 2. In Q3 2019, Selling and Administrative Expenses was 361 MTHB, increased by 42 MTHB or

(including Depreciation and Amortization) of THB 96.62 million or decrease 19.56 percent. from THB 120.10 million compared to the same period of the previous year Most of them were the result of lower product

summary of the Company’s operating performance in the second quarter of 2017 and 2016 is shown in the following table: 2Q17 1Q17 %Change 2Q16 %Change [Amount: in Baht Million] Q-o-Q Y-o-Y [2Q17 VS. 1Q17

. A summary of the Company’s operating performance in the third quarter of 2017 and 2016 is shown in the following table: 3Q17 2Q17 %Change 3Q16 %Change [Amount: in Baht Million] Q-o-Q Y-o-Y [3Q17 VS

from lower revenue from sales Earnings Before Interest, Tax, Depreciation and Amortization (EBITDA) Unit: Million Baht 2Q 2020 2Q 2019 Change % Change 6M 2020 6M 2019 Change % Change EBIT 289.17 436.36

- Translation - MPIC 011/2017 August 9, 2017 Subject: Submit the Financial Statement for the quarter ended June 30, 2017 and clarification for the change of operating result more than 20% Attention

-31.00 Net Profit Margin 6.86 1.86 -1.28 -3.14 -168.82 -8.14 -118.66 56.36 16.87 -39.49 -70.07 Unit : Million Baht Q4/59 Q3/60 Q4/60 Change +/(-) 12M/59 12M/60 Change +/(-) 1. The total revenue of Q4/17

-5.67 -31.00 Net Profit Margin 15.29 1.70 -1.28 -2.98 -175.29 -16.57 -108.37 56.05 16.87 -39.18 -69.90 Unit : Million Baht Q4/59 Q3/60 Q4/60 Change +/(-) 12M/59 12M/60 Change +/(-) 1. Net sales of Q4/17