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Oceanagold Receives Preliminary Approval FOR MINE Life Extension at Waihi

Permits & Approvals

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MEDIA RELEASE

17 December 2018

OCEANAGOLD RECEIVES PRELIMINARY APPROVAL FOR MINE LIFE

EXTENSION AT WAIHI

(MELBOURNE) OceanaGold Corporation (TSX: OGC / ASX: OGC) (the “Company”) is pleased to announce

that an independent panel of commissioners appointed by the Hauraki District Council and the Waikato

Regional Council (collectively the “Regulator”) , have granted all resource consents for the Martha

underground mine and resumption of mining operations from stage 4 of the Martha open pit, subject to the

outcome of a statutory appeal period.

Mick Wilkes, President and CEO of OceanaGold said, “ These consents represent a great outcome for the

Company, the town of Waihi and for the region , as the extended mine life provides our valued employees

and our shareholders with more certainty that mining at Waihi will continue for at least the next 10 years .

Waihi has had a long rich history of gold mining that dates back to the 1800’s and since then over 11 million

ounces of gold have been produced in the Coromandel. More recently, since 1988 when mining commenced

at the Martha Open Pit, the Waihi operation has been a major employer in the region and has contributed a

significant amount of socio -economic benefits while operating to the highest of environmental standards

globally.”

Following receipt of these consents from the Regulator, parties who provided submissions during the initial

public hearing process have until 1 February 2019 to appeal the decision.

- ENDS -

For further information please contact:

Investor Relations Media Relations

Sam Pazuki

Tel: +1 416 915 3123

Melissa Bowerman

Tel: +61 459 900 099

Jeffrey Sansom

Tel: +61 3 9656 5300

[email protected] [email protected]

www.oceanagold.com | Twitter: @OceanaGold

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About OceanaGold

OceanaGold Corporation is a mid -tier, high-margin, multinational gold producer with assets located in the

Philippines, New Zealand and the United States. The Company’s assets encompass the Didipio Gold-Copper

Mine located on the island of Luzon in the Phil ippines. On the North Island of New Zealand, the Company

operates the high-grade Waihi Gold Mine while on the South Island of New Zealand, the Company operates

the largest gold mine in the country at the Macraes Goldfield which is made up of a series of op en pit mines

and the Frasers underground mine. In the United States, the Company operates the Haile Gold Mine, a top-

tier, long-life, high-margin asset located in South Carolina. OceanaGold also has a significant pipeline of

organic growth and exploration opportunities in the Americas and Asia-Pacific regions.

OceanaGold has operated sustainably since 1990 with a proven track-record for environmental management

and community and social engagement. The Company has a strong social license to operate and work s

collaboratively with its valued stakeholders to identify and invest in social programs that are designed to build

capacity and not dependency.

The Company expects to produce 515,000 to 545,000 ounces of gold and 15,000 to 16,000 tonnes of copper

with All-In Sustaining Costs that range from $725 to $775 per ounce sold.

Cautionary Statement for Public Release

Certain information contained in this public release may be deemed “forward -looking” within the meaning of

applicable securities laws. Forward -looking statements and information relate to future performance and

reflect the Company’s expectations regarding the generation of free cash flow, execution of business

strategy, future growth, future production, estimated costs, results of operations, business prospects and

opportunities of OceanaGold Corporation and its related subsidiaries. Any statements that express or involve

discussions with respect to predictions, expectations, beliefs, plans, projections, objectives, assumptions or

future events or performance (often, but not always, using words or phrases such as "expects" or "does not

expect", "is expected", "anticipates" or "does not anticipate", "plans", "estimates" or "intends", or stating that

certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur or be achieved) are

not statements of historical fact and may be forward -looking statements. Forward -looking statements are

subject to a variety of risks and uncertainties which could cause actual events or results to differ materially

from those expressed in the forward -looking statements and information. They include, among others, the

accuracy of mineral reserve and resource estimates and related assumptions, inherent operating risks and

those risk factors identified in the Company’s most recent Annual Information Form prepared and filed with

securities regulators which is available on SEDAR at www.sedar.com under the Company’s name. There are

no assurances the Company can fulfil forward -looking statements and informa tion. Such forward -looking

statements and information are only predictions based on current information available to management as

of the date that such predictions are made; actual events or results may differ materially as a result of risks

facing the Co mpany, some of which are beyond the Company's control. Although the Company believes

that any forward-looking statements and information contained in this press release is based on reasonable

assumptions, readers cannot be assured that actual outcomes or results will be consistent with such

statements. Accordingly, readers should not place undue reliance on forward -looking statements and

information. The Company expressly disclaims any intention or obligation to update or revise any forward-

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looking statements and information, whether as a result of new information, events or otherwise, except as

required by applicable securities laws. The information contained in this release is not investment or financial

product advice.

NOT FOR DISSEMINATION OR DISTRIBUTION IN THE UNITED STATES AND NOT FOR DISTRIBUTION

TO US NEWSWIRE SERVICES.