million, we wish to clarify the changes in our operating results as follows: ‐ Sales Revenue was increased by Baht 18.30 million or 8.71% compared the same period of prior year. Export Sales Revenue was

amounting to Baht 13.89 million or 70.65 % because of the follow main reasons. 1. Revenue from hospital operations increased by Baht 37.02 million or 6.30 % due to in Q1/2020 the revenue from general patient

to Baht 18.02 million or 53.26 % because of the follow main reasons. 1.Revenue from hospital operations decreased by Baht 9.58 million or 1.74 % due to the situation of COVID 19 , the revenue from

2020: 1. Sales Revenue 1.1 Sales revenue for the 3-months period ended 31 July 2020 INGRS registered sales revenue of Baht 409.96 million for the 3-months period ended 31 July 2020, a reduction of Baht

Summary Significant Event Operating Highlights in Q1/2023 Q2/22 Q2/23 Change +/(-) 1H/22 1H/23 Change +/(-) (THB million) %YoY %YoY Operating Revenue 230 299 30% 428 563 32% Gross Profit 147 192 31% 267 361

Pursuant to the Royal Decree No. 750 issued by the Revenue Department, which aims to promote startup funding, an exemption of revenue tax shall be given to juristic or non-juristic persons who notify

Ratio 2017 Ratio Increase / (Decrease) Amount Ratio Service revenue 1,832.11 100.00% 1,396.37 100.00% 435.74 31.21 Other income 18.00 0.98% 5.96 0.43% 12.04 202.01 Cost of service 1,454.70 79.40% 1,054.29

% Revenues from sales and rendering services 2,632.52 2,776.38 143.86 5.46% Revenues from hotel operations 105.72 88.28 -17.45 -16.50% Total revenue 2,738.25 2,864.65 126.41 4.62% Cost of goods sold and

June 2019 Ratio 2018 Ratio Increase / (Decrease) Amount Ratio Service revenue 537.80 100% 429.18 100% 108.62 25.31 Other income 8.39 1.56% 6.53 1.52% 1.86 28.53 Cost of service 460.91 85.70% 331.19 77.17

Revenue from sales and services 149.92 147.00 2% 154. 53 (3%) Revenue from sales of food and beverages 244.21 132.43 84% 149. 75 63% Total 394.13 279.43 41% 304. 28 29% Gross profit 82.22 63.31 30% 66.07 24