Bangkok Expressway and Metro Public Company Limited, No. 6/2023 resolved to grant approval for the Company to enter into an agreement on engagement of CH. Karnchang Public Company Limited ("CH.

Karnchang") to carry out maintenance and improvement of the civil works of the Si Rat Expressway and the Prachim Ratthaya Expressway (the "Si Rat - Outer Ring Road Expressway) in an amount of THB 618,161,920 (excluding VAT), and grant approval for Northern Bangkok Expressway Company Limited (the "Subsidiary") to engage CH. Karnchang to carry out maintenance and improvement the civil works of the Udon Ratthaya Expressway in an amount of THB 402,009,730 (excluding VAT), as such, the work value of the Company and the Subsidiary would be a total of THB 1,020,171,650 (excluding VAT). The execution of the transaction with CH.

Karnchang, in its capacity as the Company's major shareholder, is considered execution of a transaction with a connected person in an ordinary course of business without any general trading conditions pursuant to the Notification of the Capital Market Supervisory Board No. TorChor. In this regard, to ensure that arrangements relating to such connected transaction are made in accordance with the Connected Transaction Notifications, the Company hereby notifies information memorandum on connected transaction regarding engagement of CH.

KarnchANG to carry out maintenance and improvementof the civil works of the SiRat Expressway, the Prachim Ratthay Expressway and the Udon Ratthaya expressway, as per the following details: Transaction Date.: By January 2024. Karnchang is appropriate. Calculation of Size of the Connected Transaction.

This transaction has the total work value of THB 1,020.17 Million (excluding VAT), representing 2.78%, as compared to the net tangible asset value under the consolidated financial statements as at September 30, 2023. According to the regulations of the Stock Exchange of Thailand, the transaction with its value of less than 3% (THB 36,660.84 Million X 3% = THB 1,099.82 Million) is subject to consideration and approval of the Board of Directors. Nature and Scope of Interests of Connected Persons.

CH. Karnchang is the Company's major shareholder, whereby according to the share register as at March 9, 2023, CH. Karnchang held 5,260,056,884 shares in the Company, representing 34.41% of the registered capital.

Given that the Company and the Subsid subsidiary engage CH. Karnchang, as the Company's major shareholder the Company's major shareholder, to carry out such operations, it is therefore considered execution of a connected transaction in an ordinary course of business of the Company without any general trading conditions, due to the fact that the selection of the contractor is in accordance with the opinion provided by the independent consulting engineer that the contractor should be the same person who previously conducted the construction, with availability of information and knowledge in terms of construction technique, which is capable of maintaining and improving the structures in order to prevent any impact on the current expressway structures and not to affect the service users who regularly use the expressways.