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Oceanagold Provides Operational Update Following Recent Weather Events IN the Philippines and the Carolinas

Mine Development & Operations

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MEDIA RELEASE

19 September 2018

OCEANAGOLD PROVIDES OPERATIONAL UPDATE FOLLOWING RECENT

WEATHER EVENTS IN THE PHILIPPINES AND THE CAROLINAS

(MELBOURNE) OceanaGold Corporation (TSX: OGC / ASX: OGC) (the “Company”) provides an update on

its Didipio operation in the Philippines and Haile operation in the United States, where over the past weekend

severe weather impacted surrounding areas.

Mick Wilkes, President and CEO of OceanaGold said, “ The safety and well -being of our employees is

paramount and I’m very happy to announce that following major storms in the Philippines and in the Carolinas

no injuries were reported. The Company uses stringent processes and operational readiness practices ahead

of potential severe weather events to ensure workers are safe, the site is secure and our robust environmental

safety controls are in place.”

He went on to say, “Our valued workforce at both the Did ipio and Haile operations were well prepared and

equipped to deal with a worst-case scenario weather event and both operations are designed to withstand

hurricanes, tornados or other severe weather. Our community relations teams remained in close contact with

local authorities and communities throughout the storm and in the aftermath, we offered our assistance in

recovery efforts.”

“Operationally, we do not expect any impact to production at either operation as a result of these storms.”

Philippines

In the Philippines, the Didipio operation reported no injuries or environmental impacts associated with Super

Typhoon Mangkhut, a category five storm that impacted northern Philippines. At Didipio, the centre of the

storm travelled north of the operation, however the site received a moderate amount of rainfall. As Didipio is

designed for and accustomed to significant rainfall and strong wind events, particularly during the typhoon

season, the site was well prepared in advance of the storm. Following a brief stoppage of operational

activities, the Didipio operation was safely restarted.

The impact of the storm on the Philippines was significant and as part of their preparations the Company had

dispatched a Typhoon Response Team to assist local and regional g overnment authorities in their recovery

efforts within the Cagayan Valley to the north of the operation. In the past, Didipio’s Typhoon Response

Teams have provided support to other similar storms such as Super Typhoon Haiyan (also known as

Yolanda) that devastated the Visayas region in Central Philippines in 2013.

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United States

In the United States, the Haile operation reported no injuries or environmental impacts associated with

Tropical Storm Florence, which significantly impacted coastal areas in North and South Carolina. The centre

of the slow -moving storm travelled south of Columbia, South Carolina (Haile located 60 miles north of

Columbia). The Haile operation was well prepared for a worst-case scenario storm event and was temporarily

suspended on Fr iday ahead of the weather and for the safety of the workforce who commute to and from

site. The process plant was safely and successfully restarted on Sunday while mining resumed on Monday.

Prior to, during and after the storm, the Haile operation worked closely with local communities and maintained

open communication lines during the storm to support their needs and well -being. In the aftermath of the

storm, the Haile operation offered its support and assistance for any emergency clean-up required.

- 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

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 Philippines. O n 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 open pit min es

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 works

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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 500,000 to 540,000 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 stateme nts 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 ma terially

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 C ompany’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 information. Suc h 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 Company, so me 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 w ill 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-

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.