The Board of Directors' Meeting of G J Steel Public Company Limited ("the Company") No. 3/2567 held on 9 May 2024 (the "Meeting"), has passed the resolution to approve to provide service to G Steel Public Company Limited ("GSTEEL") by using the Company's Skin Pass Facility to conduct inspection, flattening of coils and other services to solve the problem of HRC coils of GSTEEL. The same had been reviewed and concurred by the Company's Audit Committee's Meeting No.

3/2024 held on 9 May 2024. This service is deemed as a connected transaction according to the Notification of the Capital Market Supervisory Commission No. Tor Chor 21/2551 Re: Rules on Connected Transactions and the Notification of the Board of Governors of the Stock Exchange of Thailand (SET) Re: Disclosure of Information of Listed Company Concerning the Connected Transactions B.E. 2546 (2003), the details of which are as follows: Date of Transaction: The service will be provided until August 2024.

Transaction Parties Service receiver:G Steel Public Company Limited ("GSTEEL"), a company holding shares 8.33% in the Company and having the same major shareholder with the Company which is Nippon Steel Corporation who directly holds 7.70% of the Company's paid-up capital and indirectly holds 40.45% of the Company's paid-up capital through Asia Credit Opportunities I (Mauritius)Limited Service provider: G J Steel Public Company Limited. Description of the Transaction The Company will process up to 1,500 tons of HRC coils for GSTEEL by using Skin Pass Facility of the Company. Total Value and Criteria used in determining a transaction's total value The Company will process up to 1,500 tons of HRC coils for GSTEEL by using Skin Pass Facility of the Company at a service fee of THB 213 /ton which is derived from the estimate production cost of Skin Pass plus margin of 5%.

Total value of transaction: Total Value of the transaction comprises of the service fee of all the coils to be processed, the maximum amount of service fee is THB 319,500. Transaction Size: The aforementioned transaction is considered as providing service to connected person. The size of the transaction is approximately 0.0026% of the Company's Net Total Assets (NTA) (NTA of the Company as per the latest financial statement as of March 31, 2024 was THB 12,140.50 million) which is less than THB 1 million or 0.03% of the Company's NTA.

In addition to that, if other connected transactions with related persons of NSC in the past 6 months are included in the transaction size, it will be approximately 0.1224% of NTA which is higher than THB 1 million or 0.03% of the Company's NTA, but less than THB 20 million or 3% of the Company's NTA. Accordingly, this transaction shall be approved by the Board of Directors and disclosed to the Stock Exchange of Thailand.