Ref: VNT-CPR-2012 Ref: VNT-CPR-2017.058 30 November 2017 Subject: Resolution of Vinythai Board of Directors' Meeting No.7/2017 on connected transaction Attn: President, the Stock Exchange of Thailand

, JOMTHONG, BANGKOK 10150, THAILAND TEL. 02-473-8000 FAX: 02-473-8398 - Translation - No. GFPT 1/2562 February 21st, 2019 Subject: Notification of the connected transaction regarding the receipt of financial

.์ -4332-7776 E-mail: kcmetalsheet@hotmail.com Website: www.kcmetalsheet.co.th Ref KCM63/006 June 9, 2020 Subject Notice of related party transaction To President The Stock Exchange of Thailand K.C

suitability for investment and the relevant risk exposure. The effectiveness of this registration statement neither represents that the Ministry of Finance of Thailand, the Securities and Exchange Commission or

1 -Translation- Ref :IR 62/023 December 23, 2019 Subject: Change in Shareholding Structure of Subsidiary Company To: President, The Stock Exchange of Thailand T.K.S. Technologies Public Company

of the management in order to assist investors to better understand the company's financial status and operation. It also supports the "Good Corporate Governance Project" of the Securities and Exchange

1 Ref. No. JUTHA-10/2563 November 2, 2020 Subject: Amendment of Articles of Association, Debt to Equity Conversion Constituting a Connected Transaction, Issuance and Offering of Newly Issued Ordinary

DCORP 008/2020 February 26th, 2020 Subject 2019 Performance Report for the Year Ended December 31st, 2019 and the Reduction of Performance Exceeding 20% To The Securities and Exchange Commission and

Attention: President Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for first 9 months of the year 2019

Attn: President Stock Exchange of Thailand Demeter Corporation Public Company Limited (“DCORP” or the “Company”) would like to submit the reviewed financial statements for first quarter of the year 2020