1 At JSP 076/2561 (OOP) July 11, 2018 Subject Notifications of the connected transaction-borrowing from connected person To The President, The Stock Exchange of Thailand The Board of Director’s

NEP 045-2562 12 September 2019 Subject: Resolutions of the Board of Directors' Meeting regarding entering into transaction with connected person To: President The Stock Exchange of Thailand The

1 JSP 016/2563 (OOP) Date: 22 April 2020 Re: Notification of the connected transaction-renew from connected person (Add) Attn: The President The Stock Exchange of Thailand The Board of Director’s

(Translation) No.Tor.For. 24/2018 21 December 2018 Subject : To sell common shares of Waseda Education (Thailand) Company Limited to connected person. Attention : The President of the Stock Exchange

1 At JSP 076/2561 (OOP) July 11, 2018 Subject Notifications of the connected transaction-borrowing from connected person (Revise) To The President, The Stock Exchange of Thailand The Board of

Transactions and disclosure to the Stock Exchange of Thailand 6. Connected person 1 person of co-director, Mr. Sanan Eksangkul 7. Source of fund Company’s working capital 8. Opinions of the Audit Committee

Thian, Bangkok 10150 Tel. 02-897-8888, 02-897-8800 Fax. 02-897-8890 At JSP 085/2561 (OOP) August 14, 2018 Subject Notification of the connected transaction-borrowing from connected person To The President

Thian, Bangkok 10150 Tel. 02-897-8888, 02-897-8800 Fax. 02-897-8890 At JSP 100/2561(OOP) September 14, 2018 Subject Notification of the connected transaction-borrowing from connected person To The

Thian, Bangkok 10150 Tel. 02-897-8888, 02-897-8800 Fax. 02-897-8890 JSP 047/2562 (OOP) June 25, 2019 Subject : Notification of the connected transaction-borrowing from connected person Attention : The

NEP 045-2562 12 September 2019 Subject: The Sale of the machines to connected person (Add Information) To: President The Stock Exchange of Thailand The resolution of the Board of Directors’ Meeting