Mr. Chirasak Chiyachantana Mr. Chirasak Chiyachantana, chief executive officer and chairman of the board, responsible for the operation of World Corporation Public Company Limited (“WORLD”), shall be

Ms. Chirawin Hongsri During 2017, Mr. Chirasak Chiyachantana, the Chairman and CEO of World Corporation Public Company Limited ("WORLD"), with the assistance of Ms. Chirawin Hongsri

: 1. Date of transaction Within 31 August, 2017 2. Name of Parties concerned and relationship with the listed company The Seller: The Company The buyer: Mr. Chirasak Chiyachantana and/ or the juristic

Seller: The Company The buyer: Mr. Chirasak Chiyachantana and/ or the juristic person in which Mr. Chirasak Chiyachantana wishes to be a buyer and/or transferee. Western U WP Assets WS Assets World Dental

12.9124 12.7453 0.167 08/07/2022 12.9124 12.7453 0.167   246019552207-1 WORLD Mr. Chirasak Chiyachantana Acquisition Stock 60.5748 12.7453 73.3202 08/07/2022 60.5748 12.7453 73.3202   246019542207-1 WORLD

last year, Because the Company has already disposed of its investment since the third quarter of last year. Please be informed accordingly. Yours sincerely (Chirasak Chiyachantana Ph.D. Asso.Prof

Before Acquisition/ Disposition 2 % Group of Held Acquisition/ Disposition 2 % Group of Held After Acquisition/ Disposition 2 Remark 3 File No YCI Mr. Chirasak Chiyachantana Acquisition Stock 3.9546 6.3174

Abstain - 0.00 Mr. Chirasak Chiyachantana, Mrs. Sangsri Chiyachantana, Mr. Chiraphol Chiyachantana and Ms. Pattarawan Prasanpanich are connected persons. There is no right to vote on this agenda. Asset

business), i.e., disposing ordinary shares of NU of 30,599,999 shares, equivalent to 90 percent of the total NU shares to Chirasak Chiyachantana Ph.D. Asso.Prof. at an approximate price of Baht 8.3824 per

accordingly. Yours sincerely (Chirasak Chiyachantana Ph.D. Asso.Prof.) Authorized Information Officer