OceanaGold Commences Trading on the New York Stock Exchange

• On April 7, 2026 OceanaGold’s common shares began trading on the New York Stock Exchange under ticker OGC at market open.
• The U.S. OTC quotation was discontinued; TSX trading in CAD continues unchanged.
• No shareholder action is required – existing holdings automatically transition to the NYSE environment.

• Expectation vs. reality: The NYSE listing was announced on March 31, 2026 and reaffirmed on April 1, 2026. The actual commencement on April 7 simply fulfills that prior guidance.
• Liquidity & investor base: Moving to a major U.S. exchange improves visibility, broadens the potential investor pool, and typically narrows bid‑ask spreads. This can modestly enhance price stability and may support higher valuation multiples over time.
• Capital raising flexibility: NYSE listing meets minimum share‑price requirements for future equity offerings, giving the company a clearer path to raise capital if needed.
• Materiality rating: Because the event was pre‑announced and is an execution of a planned corporate action, it does not constitute new information that would materially re‑price the stock. It is therefore classified as Routine – Positive.

OceanaGold operates four producing mines in Tier 1 jurisdictions (Haile – USA; Macraes & Waihi – New Zealand; Didipio – Philippines) plus the development‑stage Wharekirauponga Underground (Waihi North Project). Total gold reserves stand at ~6.2 Moz, with a diversified cost base (AISC $1.9–$2.05/oz for 2025 guidance). The flagship growth driver is the Waihi North underground project, which received final permit approval in December 2025 and targets first production in 2032‑33.