OceanaGold Sets Effective Date for Share Consolidation Related to US Listing

VANCOUVER, BC, June 19, 2025 /PRNewswire/ – OceanaGold Corporation (TSX: OGC) (OTCQX: OCANF) today announced a share consolidation set to take effect on Monday, June 23, 2025. The move, approved by shareholders at the recent Annual General and Special Meeting on June 4, will see every three pre-consolidation shares converted into one post-consolidation share.

This consolidation comes as OceanaGold eyes a potential dual listing on a major U.S. exchange, possibly including the New York Stock Exchange, slated for the first half of 2026. The company believes a U.S. listing could be a catalyst, attracting a broader investor base and boosting both marketability and trading liquidity. The consolidation is strategically designed to elevate the per-share trading price, aligning with the minimum trading price requirements of such exchanges.

Trading of the post-consolidation shares will commence on the Toronto Stock Exchange under the existing symbol “OGC” and a new CUSIP number, 675222400, on the effective date.

Currently, OceanaGold has 693,379,818 common shares issued. Following the consolidation, the company anticipates approximately 231,126,566 shares outstanding, subject to rounding. Adjustments will be made proportionally to the exercise or conversion prices of all performance rights and deferred share units, reflecting the consolidation ratio. No fractional post-consolidation shares will be issued. Fractional interests of 0.50 or more will be rounded up, while those below 0.50 will be cancelled.

Shareholders holding shares through the Direct Registration System (DRS) will automatically receive a DRS advice from the transfer agent, representing their post-consolidation shareholding, eliminating the need for further action. Investors holding shares through intermediaries such as brokers should consult their respective institutions regarding the processing of the consolidation. Registered shareholders who possess share certificates will receive instructions from the transfer agent regarding the exchange process.

About OceanaGold

OceanaGold is a growing mid-tier gold and copper producer focused on responsible and safe operations, aiming to maximize Free Cash Flow generation and deliver strong returns to its shareholders. The company’s portfolio includes four operating mines: the Haile Gold Mine in the United States of America, the Didipio Mine in the Philippines, and the Macraes and Waihi operations in New Zealand.

Cautionary Statement for Public Release

This press release contains certain “forward-looking statements” and “forward-looking information” within the meaning of applicable Canadian securities laws. These statements include, but are not limited to, the potential for a U.S. exchange listing, the potential benefits of such a listing, the expected timeline of the listing, the anticipated Effective Date and effects of the share consolidation and their impact on the Company. Forward-looking statements relate to future performance and include expectations for Free Cash Flow generation, the execution of business strategies, future growth, production, costs, results of operations, business prospects and opportunities. Statements that express or involve discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or future events or performance, are not historical facts and are considered forward-looking. Forward-looking statements are subject to a variety of risks and uncertainties, which could cause actual outcomes to differ materially from those projected. These risks are identified in the Company’s most recent Annual Information Form available on SEDAR+ and the company’s website. Readers are cautioned not to place undue reliance on forward-looking statements. Actual events or results may differ materially as a result of risks facing the Company, which are beyond the Company’s control. The Company disclaims any responsibility for updating or revising the forward-looking statements, except as required by applicable securities laws.

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