(-Translation-) Ref. No. U.SET 022/2019 September 20, 2019 Subject : Acquisition of ordinary shares in Trebren Investments Sp.z.o.o. To : The President The Stock Exchange of Thailand U City Public

(-Translation-) Ref. No. U.SET 027/2018 June 4, 2018 Subject: Acquisition of 50 percent of ordinary shares in the subsidiaries of Sansiri Public Company Limited To: The President The Stock Exchange

Ref.No.IVL001/08/2019 8th August 2019 President The Stock Exchange of Thailand Subject: Acquisition of Integrated Oxides and Derivatives Businesses/ Assets Enclosure: Information concerning the Acquisition of

Ref. No. U.SET 023/2018 10 May 2018 Subject: Acquisition of 30 Percent of Ordinary Shares in Vienna House (Thailand) Company Limited To: The President The Stock Exchange of Thailand U City Public

  :   Information Memorandum on Acquiring of Common Shares in Ekachai International Co., Ltd.     To          :   Managing Director of Stock Exchange of Thailand     Ref.    :   The EKH / CS / 2560/016 Establishment

    Subject  :   Information Memorandum on Acquiring of Common Shares in Ekachai International Co., Ltd.  (Revised)    To          :   Managing Director of Stock Exchange of Thailand     Ref.    :   The EKH

acquired other assets in the amount of approximately Baht 348,089,782.34, representing the total transaction size of 0.8734 percent as disclosed to the Stock Exchange of Thailand on 8 January 2018, 20 April

August 30th, 2019 To : Managing Director The Stock Exchange of Thailand Re : The acquisition of investment in Nan-Ram Hospital Co.,Ltd. The board of directors of Ramkhamhaeng Public Co.,Ltd. held on

report the transaction to the Stock Exchange of Thailand. Method Calculation Transaction Size (%) NTA of the invested fund X proportion of the assets acquired 1. Asset Value Method (NTA) Company’s NTA 0.00

-1- December 25, 2018 Subject Report on Payment 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 Exchange of