Chatham Rock Phosphate Private Placement

NEWS RELEASE 25-020 October 27, 2025 CHATHAM ROCK PHOSPHATE LIMITED PRIVATE PLACEMENT WELLINGTON New Zealand – Chatham Rock Phosphate Limited, “CRP” or “the Company” (TSXV: “NZP”, NZX: “CRP” FSE “3GRE”) wishes to announce that the Company is proceeding with a non-brokered private placement (the “Private Placement”) of up to 10,000,000 units (the “Units”) at a price of CAD 0.05 per Unit (NZD 0.062 or AUD 0.055) for gross proceeds of up to CAD 500,000 (NZD 620,000 or AUD 550,000). Terms of the Issue Each Unit will consist of one common share in the capital of the Company and one (1) share purchase warrant (“Warrant”), which shall be transferable subject to applicable securities legislation. Each Warrant will entitle the holder thereof to acquire one common share at a price of CAD $0.12 per share at any time prior to the date that is twelve months from the date of issuance. In the event that the common shares of the Company trade on the TSX Venture Exchange at a closing price of greater than CAD $0.20 per common share for a period of 20 consecutive trading days at any time after four months and one day after the closing date of the Private Placement, the Company may accelerate the expiry date of the Warrants by giving notice to the holders thereof by way of a news release and in such case the Warrants will expire on the 30th day after the date of dissemination of such news release. The common shares and Warrants issued pursuant to this proposed offering are subject to a hold period of four months plus one day after the closing date of the Private Placement as provided by securities legislation. Finders’ fees may be payable in cash to arm’s length parties in connection with the Private Placement as permitted under the policies of the TSX Venture Exchange. The Private Placement is subject to the acceptance by the TSX Venture Exchange and is expected to close on or before December 5, 2025. Disposition of Funds The Private Placement funds raised will be used for general working capital. Eligible investors are encouraged to contact me directly immediately if they wish to participate. For further information please contact: Chris Castle President and Chief Executive Officer Chatham Rock Phosphate Limited 64 21 55 81 85, chris@widespread.co.nz or chris@crpl.co.nz Neither the Exchange, its Regulation Service Provider (as that term is defined under the policies of the Exchange), or New Zealand Exchange Limited has in any way passed upon the merits of the Transaction and associated transactions, and has neither approved nor disapproved of the contents of this press release.