Mission Announcement Day โดยมีนายไพบูลย์ นรินทรางกูร กรรมการสภาธุรกิจตลาดทุนไทย และประธานเจ้าหน้าที่บริหาร บริษัทหลักทรัพย์ ทิสโก้ จำกัด ให้เกียรติปาฐกถาพิเศษ ในหัวข้อ “Driving Economic Prosperity

No. WHAUP-CS025/2018 28 May 2018 Subject: Notification of Information Memorandum of Related Party Transaction in Relation to Right to Operate Water Utilities Business in WHA Hemaraj Industrial Zone 1

รายงานการประชุมคณะกรรมการตรวจสอบ ครั้งที่ 4/2548 Ref.: SET-2018-003 February 14, 2018 Subject: Additional Disclosure “Signing on the Franchise Agreement; and the Agreement to Acquire and Dispose

the investment in the construction of the Central Wastewater Treatment Plant and Collecting System of the Industrial Zone of Mandalay, the Republic of the Union of Myanmar which is deemed to an

strategically located in Ain Sokhna free trade zone, North West of the Gulf of Suez and thus providing logistical advantage when sourcing feedstock and delivering end products in key markets, domestically and

1/4 -Translation- No. KC 019/2562 4 September 2019 Subject: Notification on the resolution of the Board of Director Meeting Re: The land disposal of K.C. Park Ville (Zone B) To: President The Stock

quarter 3/2018, as of February 28, 2018, which were reviewed by the auditor. 2. Has approved to propose to the shareholders meeting for ratification in the disposition of shares in Thai bonnet Trading Zone

1/6 -Translation- No. KC 019/2562 4 September 2019 Subject: Notification on the resolution of the Board of Director Meeting Re: The land disposal of K.C. Park Ville (Zone B) To: President The Stock

resolution by approving the Company to enter into the lease agreement by leasing on Ratchaphatsadu Land in special economic zone, located in Atsamart sub-district, Mueang Nakorn Phanom district, Nakorn Phanom

of Thailand Re: Disclosure of Information and Other Acts of Listed Companies Concerning the Acquisition and Disposition of Assets B.E. 2547 dated 29 October, 2004. The Company therefore would like to