) 815-7060 (AUTO 9 LINES), 425-9723-7, FAX : (662) 815-7069, 425-8358, 425-9729 . . 188 REF: SET 61-01 March 2, 2018 Subject: the explanation of overall operation in 2017 To : the President of the Stock

10290, THAILAND TEL : (662) 815-7060 8163060-1 , 461-2100-1, FAX : (662) , 461-2102 . %&'. 188 REF.SET: 60-10 11 August 2017 Subject: the explanation of business profits for the quarter of 2/2017 To : the

10290, THAILAND TEL : 0-2815-7060 , 0-2461-2100-1 , 0-2816-3060, FAX : 0-2461-2102 , 0-2816-0179 . REF.SET: 62-10 14th May, 2019 Subject : Explanation of the business profits for the quarter 1/2019 To

10290, THAILAND TEL: (662) 815-7060 8163060-1, 461-2100-1, FAX: (662), 461-2102 . %&'. 188 REF.SET: 62-17 13 August, 2019 Subject: the explanation of business profits for the quarter of 2/2019 To : the

10290, THAILAND TEL : 0-2815-7060 , 0-2461-2100-1 , 0-2816-3060, FAX : 0-2461-2102 , 0-2816-0179 . REF.SET: 61-06 15 th May, 2018 Subject : Explanation of the business profits for the quarter 1/2018 To

10290, THAILAND TEL : (662) 815-7060 8163060-1 , 461-2100-1, FAX : (662) , 461-2102 . %&'. 188 REF.SET: 61-12 10 August 2018 Subject: the explanation of business profits for the quarter of 2/2018 To : the

, SAMUTPRAKARN 10290, THAILAND TEL : 0-2815-7060 , 0-2461-2100-1 , 0-2816-3060, FAX : 0-2461-2102 , 0-2816-0179 . REF.SET: 62-10 14th May, 2019 Subject : Explanation of the business profits for the quarter 1/2019

In recent times, crimes regarding the capital market have become significantly more intricate, which is why SEC firmly believes that there must be an upgrade in the cooperation between related

No. INGRS046 30 April 2020 Subject : Explanation on the financial performance of INGRS for the financial year ended 31 January 2020 To : The President The Stock Exchange of Thailand Ingress

specified by the Office and may also require an explanation to elaborate or clarify such reports or documents in accordance with the rules and required as specified in the notification of the SEC. The reports