Ref. PDI/BK-BS-056/2018 8th August 2018 Re: Management Discussion and Analysis (MD&A) For the 2Q 2018 and 1H 2018 To: President The Stock Exchange of Thailand Due to depletion of Mae Sod Mine’s

Ref. PDI/BK-BS-076/2018 7th November 2018 Re: Management Discussion and Analysis (MD&A) For the three-month and nine-month periods ended September 30, 2018 To: President The Stock Exchange of

: President The Stock Exchange of Thailand The Meeting of the Board of Directors of KGI Securities (Thailand) Public Company Limited (“the Company”) No. 6/2018, held on 8th November 2018, has approved the

-1- November 29, 2018 Subject Change of payment method for investment in acquisition and sale of tap water in some areas of Phuket and some areas of Phangnga. To Director and Manager The Stock

November 14, 2019 Re : Approval of Acquisition of Assets To : The President The Stock Exchange of Thailand The Borad of Directors’ Meeting of World Corporation Public Company Limited (“the Company”) No.8

Assets (revised) To : The President The Stock Exchange of Thailand The Board of Directors’ Meeting of World Corporation Public Company Limited (“the Company”) No.8/2019 Held on November 14, 2019 at 14.00

Assets N Hospital Company Limited with additional 16.67 percent To : The President The Stock Exchange of Thailand The Board of Directors’ Meeting of World Corporation Public Company Limited (“the Company

, 2020 Re: Management Discussion and Analysis (MD&A) For the three-month and six-month periods ended June 30, 2020 To: President The Stock Exchange of Thailand Padaeng Industry Public Company Limited and

involved with the audit of an entity whose securities are publicly traded in stock exchange in your jurisdiction as either Signing Partner or Engagement Partner or equivalence? Yes No If yes, please attach

Bangkok, April 3, 2012 ? The SEC in cooperation with the Ministry of Interior, the Stock Exchange of Thailand (SET), the Federation of Thai Industries, Thai Chamber of Commerce, Investment Banking