May 25, 2017 Subject: Notification on the Acquisition of Assets of AAPICO Hitech Public Company Limited To: The President The Stock Exchange of Thailand Enclosure: Information Memorandum Concerning the

Telecommunications Commission (“NBTC”) to request for the License return on 10 May 2019 (“Transaction of Returning Spring26’s License”). Besides, NBTC delivered the notification letter, dated 27 June 2019, regarding

6 Offer Price Original The Offer Price is THB 91.9906 (Ninety-one point nine nine zero six Baht) per share (the “Offer Price”), which will be reduced by an amount of dividend to be received by the

person under Section 258 3. Date of filing this report to the SEC 24 January 2020 4. The highest price paid by the reporting person or person in the same group 1 for its acquisition of the securities

September 2020. 4. The highest price paid by the reporting person or person in the same group 1 for its acquisition of the securities during the past 90-day period (the first day being the date of action

3. Date of filing this report to the SEC 28 October 2020 4. The highest price paid by the reporting person or person in the same group 1 for its acquisition of the securities during the past 90-day

filing this report to the SEC 30 October 2020. 4. The highest price paid by the reporting person or person in the same group 1 for its acquisition of the securities during the past 90-day period (the first

. 7. Date of filing this report to the SEC 25 November 2020. The highest price paid by the reporting person or person in the same group 1 for its acquisition of the securities during the past 90-day

December 2020. 4. The highest price paid by the reporting person or person in the same group 1 for its acquisition of the securities during the past 90-day period (the first day being the date of action

filing this report to the SEC 2 December 2020. 4. The highest price paid by the reporting person or person in the same group 1 for its acquisition of the securities during the past 90-day period (the first