October 2017 Subject: Notification of the Board of Directors No. 9/2017 on the Company Investment in SUT Hydro Company Limited To: The President The Stock Exchange of Thailand Pursuant Following Hydrotek

Electronics Public Company Limited (“the Company”) No. 9/2018, held on September 11, 2018, passed a resolution approving the purchase of asset, a land, by Thai Laminate Manufacturer Co., Ltd., the Company's

Seller does not have any relationship with the Company. The Transaction, therefore, is not considered a connected transaction under the Notification of the Capital Market Supervisory Board No. TorChor. 21

Commission Notification of the Securities and Exchange Commission No. Kor Thor. 65/2547 Re: Rules for Undertaking Derivatives Business for Licensed Derivatives Broker _____________ By virtue of Section 9 and

. The SEC, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss of damages arising from or related to its use. The Securities and Exchange Commission Notification

, Thailand cannot undertake any responsibility for its accuracy, nor be held liable for any loss of damages arising from or related to its use. The Securities and Exchange Commission Notification of the

(UNOFFICIAL TRANSLATION) Readers should be aware that only the original Thai text has legal force and that this English translation is strictly for reference. Notification of the Capital Market

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

does it require the Company to perf orm any action in accordance w ith the Notification of the Capital Market Supervisory Board No. TorChor. 20/2551 Re: Rules on Entering into Material Transactions

No. INGRS035 22nd November 2019 Subject : Notification on the Establishment of a Subsidiary Company To : The President The Stock Exchange of Thailand Ingress Industrial (Thailand) Public Company