Exchange Commission Notification of the Office of the Securities and Exchange Commission No. SorThor/Nor/Yor/Khor. 3/2550 Re: Rules, Conditions and Procedures for Establishment of Risk Management System to
cannot undertake any responsibility for its accuracy, nor be held liable for any loss or damages arising from or related to its use. The Office of the Securities and Exchange Commission Notification of the
Commission Notification of the Office of the Securities and Exchange Commission No. SorThor/Nor/Yor/Khor. 3/2550 Re: Rules, Conditions and Procedures for Establishment of Risk Management System to Prevent the
translation is strictly for reference. Notification of the Capital Market Supervisory Board No. Tor Jor. 10/2556 Re: Submission of the Registration Statement for an Offer for Sale of Debt Securities
specified in The Notification of The Capital Market Supervisory Board No. Tor Chor. 21/2551, regarding rules on connected transactions provided as transactions relating to assets and services having
award of 643.68 Million Baht. (Refer to the Notification of project awarded letter no. CAZ 013-2562 on 18 July 2019) 3. Service income from Testing and Inspection service increased 3.37 Million Baht or
the net tangible assets by calculating from The consolidate financial statement of the Company and its subsidiaries as at March 31, 2017 3 Size of Transaction = Value of Transaction/Non Tangible Assets
transaction that the company made with the same connected persons and their close relative during period 6 months. 4.3) Size of Transaction : Size of the transaction equal to 0.43 % of the net tangible assets
days from the date of the sale and purchase contract ordinary shares. The Buyer has not been connected person under the Notification of The Board of Stock Market Regulator. According to the Notification