August 11,2010 May 11, 2017 Re : Clarification on percentage of change more than 20% in Q1/2017 To : Director and Manager of the Stock Exchange of Thailand Revenue from sales The Company's revenue

proportion to the increment of revenue 3. Other income was 373.10 million baht, an increase of 368.34 million baht or 7,751%. From the sale and transfer of Ownership of land 487.86 million which is in the

operation expenses in proportion to the increment of revenue 3. Other income was 371.40 million baht, an increase of 369.09 million baht or 15,982%. From the sale and transfer of Ownership of land 487.86

2016. The waste treatment revenue decreased 8.4 million baht and real estate business revenue decreased 31.4 million baht. (1) Service Income - waste treatment business (Disposal-Landfill and

May 8, 2019 Re : Management Discussion and Analysis for Q1/2019 To : Director and Manager of the Stock Exchange of Thailand Revenue from sales and rendering of services L&E’s consolidated revenue

% from THB 267.0 million to THB 232.2 million, and other income decreased by THB 2.9 million from THB 7.0 million to THB 4.1 million, whereas revenue from rental and rendering of services increased 8.1

August 8, 2018 Re: Operating Performance for Q2/2018 To: Director and Manager of the Stock Exchange of Thailand Revenue from sales and rendering of services L&E’s consolidated revenue from sales of

last year at 428.11 million baht which decrease 232.21 million baht or (54.11%). Because the project management is more concise. And decrease in proportion of revenue. 3. Other income was 1.37 million

followings: Revenue form Sales for Q3 year 2018 and Q3 year 2017 was 466.86 million baht and 433.18 million baht, respectively. Revenue from sales increased at the amount of 33.68 million baht or 7.78% when

company of 24.80 million Baht. The significant changes are as follows: 1. The Group had sales and service income in the second quarter of 2020 in the amount of 1.31 million Baht. Revenue decreased by 90.29