Rpcg Public Co., Ltd.SET: RPC

Procedures for Proposing Agenda Items for 2026 Annual General Meeting of Shareholders and Nomination person to be elected as Directors in advance.

· Issued by RPCG Public Co., Ltd.

- Translation -

RPCG/HO-SET/0010/2025

September 3, 2025

Re: Procedures for Proposing Agenda Items for 2026 Annual General Meeting of Shareholders and Nomination person to be elected as Directors in advance.

To: President

The Stock Exchange of Thailand

RPCG Public Company Limited (the "Company") is aware of the shareholders' rights and equitable treatment of shareholders in accordance with the good corporate governance. The Company would like to invite the shareholders to propose agenda items of the 2026 Annual General Meeting of Shareholders and qualified candidates to be nominated for selection as the Company's board of directors in compliance with the criteria as announced on the Company's website (https://http://www.rpcthai.com) from now until December 3, 2025.

Please be informed accordingly.

Yours sincerely,

(Mrs.Supannee Tanchaisrinakorn) Company Secretary

Investor relation / Office of Managing Director Email: ir@rpcthai.com Tel. 02-372-3600

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