OceanaGold Corp

OGC

Market cap $6.48B

VANCOUVER, BC, May 12, 2026 /PRNewswire/ - OceanaGold Corporation (TSX: OGC) (NYSE: OGC) ("OceanaGold" or the "Company") is pleased to announce high-grade results from its ongoing exploration and resource conversion drilling program at the Haile Gold Mine ("Haile") in the United States. Drilling Highlights (core length): Horseshoe Underground (conversion and extension drilling): 15.5 m @ 30.64 g/t Au (UGD0121) 30.5 m @ 13.86 g/t Au (UGD0113) 22.5 m @ 13.42 g/t Au (UGD0122) 18.4 m @ 9.62 g/t Au (UGD0119) 21.9 m @ 6.48 g/t Au including 3.7 m @ 23.55 g/t Au (UGD0120) 26.3 m @ 3.41 g/t Au and 44.3 m @ 3.72 g/t Au (UGD0107) Ledbetter Underground (conversion drilling): 27.9 m @ 8.60 g/t Au (DDH1313) 27.9 m @ 4.16 g/t Au (DDH1319) 18.4 m @ 3.68 g/t Au (DDH1317) 13.0 m @ 2.25 g/t Au and 17.1 m @ 8.20 g/t Au (DDH1283) 2.6 m @ 9.63 g/t Au and 3.3 m @ 40.45 g/t Au (DDH1315) Clydesdale (initial drilling): 14.5 m @ 15.81 g/t Au including 4.5 m @ 41.6 g/t Au (DDH1305) Gerard Bond, President and CEO of OceanaGold, said "Our ongoing exploration success at Haile continues to demonstrate our ability to add tremendous value through the drill bit.

Vancouver, British Columbia, - TheNewswire - May 12, 2026:  Headwater Gold Inc. (CSE: HWG) (OTCQX: HWAUF) (the “Company” or “Headwater”) is pleased to announce it has received drill permits and is planning an initial drill program at its 100%-owned Jake Creek Project (“Jake Creek” or the “Project”) in Nevada. The program is fully funded by OceanaGold Corporation (“OceanaGold”) (TSX: OGC, NYSE: OGC) pursuant to the earn-in agreement announced October 15, 2025, with drilling expected to commence in late May 2026. The program is anticipated to consist of approximately 3,500 metres of drilling in 8 to 10 holes, utilizing a combination of reverse circulation (“RC”) and core drilling to test multiple high-priority target areas identified through the integration of geological mapping, geophysics, surface geochemistry and re-analysis of historical drilling data.

OceanaGold (OGC) delivered record Q1 results, with revenues up 98% YoY and net profit more than doubling to $235.4 million. Operational improvements, robust gold prices, a $350M buyback program, and a brand new NYSE listing underpin OGC's strong outlook and share outperformance potential. OGC's diversified mines, effective cost management, and hedged diesel exposure support resilience despite sector risks and recent valuation expansion.

OceanaGold Corporation (OGC:CA) Q1 2026 Earnings Call Transcript

(All financial figures in United States dollars unless otherwise stated) Produced 130,100 ounces of gold and 3,200 tonnes of copper, in line with the full year plan. Delivered record revenue, record operating cash flow, and increased the cash balance by 30%.

Toronto, Ontario--(Newsfile Corp. - May 4, 2026) - Carolina Rush Corporation (TSXV: RUSH) (OTCQB: PUCCF) ("Carolina Rush" or the "Company") reports on its recently completed initial 3-hole deep drill program at the Brewer Gold-Copper Project in South Carolina, USA, implemented in partnership with OceanaGold Corporation ("OceanaGold") (TSX: OGC / NYSE: OGC) under an earn-in agreement of up to US$20 million in exploration expenditures (see news release dated September 16, 2025). The program represents the first systematic test of Brewer's porphyry potential and was designed to evaluate the source of Brewer's large hydrothermal system.

(All financial figures in United States dollars unless otherwise stated) VANCOUVER, BC, April 29, 2026 /PRNewswire/ - OceanaGold Corporation (TSX: OGC) (NYSE: OGC) ("OceanaGold" or the "Company") is pleased to publish its annual Sustainability Report for the year ended December 31, 2025. The report outlines OceanaGold's sustainability performance and progress across safety, health, people and culture, community and social performance, environment, tailings management, and climate.

Vancouver, British Columbia, April 28, 2026 - TheNewswire -  Headwater Gold Inc. (CSE: HWG) (OTCQX: HWAUF) (the “Company” or “Headwater”) is pleased to announce results from the recent core drilling program at its TJ Project in Elko County, Nevada. The program was fully funded by OceanaGold Corporation (“OceanaGold”) (TSX: OGC, NYSE: OGC) pursuant to the earn-in agreement announced October 15, 2025. Highlights:

VANCOUVER, BC, April 16, 2026 /PRNewswire/ - OceanaGold Corporation (TSX: OGC) (NYSE: OGC) ("OceanaGold" or the "Company") will release its operational and financial results for the first quarter of 2026 after market close on Wednesday, May 6, 2026. The results will be made available on the Company's website at www.oceanagold.com.