year ended 31 December 2019 • Increase in gross profit was mainly derived from the following reasons: 1. Engineering service (“EN”) had an increase in gross profit for Baht 28 million because in Q3/2018

and revenue for the third quarter of 2019 was Baht 4,149.40 million, representing a decrease of 6.9% over the same period of last year. The main reasons for the increase in net profit were the increase

in increase in net profit of Baht 23.36 million or 175.71% from the corresponding period of the previous year as the following details below: 1. Revenue from sales and services increased Baht 83.54

Baht 10.8 million increased from the same period of 2016 in the amount of Baht 3.7 million which was consistent with the increase in profit before income tax. Please be informed accordingly. Yours

(loss per share of Baht 0.28). The increase of profit in the amount of Baht 7.03 million comes from the following major transactions. 1. Underwriting profit from insurance before operating expenses in

the amount of Baht 29.3 million which was consistent with the increase in profit before income tax. Please be informed accordingly. Yours sincerely, (Mr. Chalerm Harnphanich M.D.,Ph.D.) Chief Executive

2016 in the amount of Baht 62.5 million which was consistent with the increase in profit before income tax. Please be informed accordingly. Yours sincerely, (Assoc.Prof.Chalerm Harnphanich M.D.,Ph.D

September 2019 • Increase in gross profit was mainly derived from the following reasons: 1. Engineering service (“EN”) had an increase in gross profit for Baht 53 million because of no revision of estimated

million or 0.01 Baht per share, representing a total increase in profit of Baht 24.31 million or 291% of the previous year mainly came from the significant transactions as below : 1. The gross profit of

total increase in profit of Baht 68 million or 83% of the previous year mainly came from the significant transactions as below : 1. The gross profit of feeds business was higher than the previous year