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Oceanagold Intersects Additional Significant High-Grade GOLD and Silver Mineralisation at Wkp IN New Zealand

Drill Results

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MEDIA RELEASE

7 November 2019

OCEANAGOLD INTERSECTS ADDITIONAL SIGNIFICANT HIGH-GRADE GOLD

AND SILVER MINERALISATION AT WKP IN NEW ZEALAND

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

the intersection of additional high-grade gold and silver mineralisation during its extensive resource definition

drilling along the East Graben vein at the Company’s WKP prospect in New Zealand. These drill results

support and extend the high-grade results and resources reported in February 2019.

Significant Intercepts (true widths)

• 25.4m @ 38.7 g/t gold, 64.5 g/t silver East Graben vein zone

• 13.6m @ 9.8 g/t gold, 14.2 g/t silver East Graben main vein

• 4.5m @ 21.8 g/t gold, 41.3 g/t silver East Graben footwall vein

• 3.4m @ 21.4 g/t gold, 25.2 g/t silver East Graben hangingwall vein

• 1.0m @ 150.4 g/t gold, 918.9g/t silver East Graben main vein

• 1.5m @ 136.9 g/t gold, 63.2 g/t silver East Graben footwall vein

Mick Wilkes, President & CEO of OceanaGold said, “ WKP is a game -changing discovery that continues to

yield significant high-grade results. Drilling on the East Graben vein, one of several structures at WKP , has

intersected significant widths and grades in nearly every hole to date which further increases our confidence

in continuing to advance this prospect . Based on the initial high-grade resource announced earlier this year

and the continued success of our exploration program, WKP is demonstrating the significant potential still to

be fully realised in the Waihi district.”

“We are currently working on an all-encompassing preliminary economic study which we expect to complete

in the first half of 2020. We are not only excited about the prospects at Waihi for our shareholders but also

for our proud Kiwi workforce and the local, rural communities. Discoveries such WKP have the potential to

further create employment opportunities while delivering significant socio-economic benefits.”

Since the February 2019 exploration update, 8,788 metres have been drilled at WKP focussing on resource

definition drilling of the E ast Graben Vein; one of three major low sulphidation epithermal gold -silver veins

identified to date within the WKP prospect area (Figure s 1 & 3 ). In addition to these known veins, the

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Company has intercepted several high-grade veins in the hangingwall and footwall of the East Graben vein

(Table 1).

The Company commenced exploration of the WKP prospect in August 2017 and to date has drilled 24,535

metres in 54 holes. In February 2019 , the Company reported an initial Indicated Resource of 0.41 million

tonnes grading 18.0 g/t gold and 22.7 g/t silver for 234,000 ounces of gold and 296,000 ounces of silver on

the East Graben vein. Additionally, an Inferred Resource of 1.1 million tonnes at a grade of 11.9 g/t gold and

16.8 g/t silver for 401,000 ounces of gold and 568,000 ounces of silver was reported that is comprised of

mineralisation from several veins along the East Graben vein trend with the East Graben main vein

contributing approximately 45% of the Inferred metal. The footwall veins to the East Graben main vein

contributes a further 36% of the contained Inferred metal totalling 145,000 ounces of gold. The remainder of

the gold mineralisation is made up of other veins including the T Stream and East Graben Hanging wall veins.

Although significant intercepts have been drilled on the Western Vein, further drilling is required to access

the potential for additional resources.

Drilling during 2019 has focussed on growing the Inferred Resources on the East Graben vein and associated

high-grade hanging and footwall veins with approximately 11,000 metres of extensional drilling. This work

has continued to successfully intersect high -grade mineralisation of significant width , increasing the

confidence in continuity and extension of mineralisation within the East Graben vein and associated hanging

and footwall veins. This high-grade gold mineralisation remains open along strike in both directions and both

up- and down-dip of mineralisation defined to date (Figure 2).

Additional drill sites are being considered to enable more extensive step-out drilling along strike to the north

and south and extensional drilling of the high-grade intersections, in particular, up-dip to the south where drill

platforms to date were not optimal for testing potential high-grade extensions to holes WKP81, WKP63, and

WKP54. The Company also plans to further drill the T -Stream and Western veins this year with a goal of

testing the potential size of these veins as historic drilling has confirmed the significant width and grade

mineralisation similar to the East Graben vein.

The Company is currently working on an all-encompassing study for the Waihi district. The Company expects

to complete this study in the first half of 2020 incorporating development of the Martha and WKP deposits

over the longer-term highlighting production rates, high-level costs and production schedules.

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Figure 1: Plan View of geology, drill traces and distribution of 3 main veins at WKP

Figure 2: Long Section on the East Graben Vein Showing Geology and Gram x Metre Drill Intercepts

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Figure 3: Schematic E-W Cross Section of WKP Showing Significant Intersections on the 3 Main

Veins

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Table 1: Recent Significant Diamond Drill Intersections

Drill Hole

ID

East#

(m)

North#

(m)

Collar

RL

(m)

Az# Dip From

(m)

To

(m)

True

width

(m)

Gold

Grade

(g/t)

Silver

Grade

(g/t)

Vein

WKP70 2759651 6430237 235.8 134.1 -26.8 387.3 388.1 0.8 46.00 71.0 T Stream HW

WKP71B 2760155 6429850 181.8 142.4 -24.6 371.9 374.1 1.3 14.40 37.0 East Graben HW

WKP71B 2760155 6429850 181.8 142.4 -24.6 394.9 416.1 13.6 9.75 14.2 East Graben

WKP71B 2760155 6429850 181.8 142.4 -24.6 433.9 438.7 4.5 21.79 41.3 East Graben FW

WKP71B 2760155 6429850 181.8 142.4 -24.6 464.8 466.9 1.9 22.92 32.1 East Graben FW

WKP72 2760429 6429895 225.9 160.8 -51.7 167.7 170.0 1.8 14.88 26.5 East Graben HW

WKP72 2760429 6429895 225.9 160.8 -51.7 179.0 180.0 1.0* 32.20 21.0 East Graben HW

WKP72 2760429 6429895 225.9 160.8 -51.7 221.4 222.8 0.9 28.51 118.9 East Graben

WKP73 2760432 6429893 226.0 161.6 -65.8 281.3 284.2 1.9 11.52 21.8 East Graben

WKP74 2760154 6429852 181.9 123.2 -36.7 210.0 216.0 3.4 21.43 25.2 East Graben HW

WKP75 2760434 6429894 225.8 117.2 -50.9 191.9 193.4 1.0 150.40 918.9 East Graben

WKP75 2760434 6429894 225.8 117.2 -50.9 239.1 252.4 13.3* 13.01 35.9 East Graben FW

WKP76 2760432 6429892 226.0 169.8 -42.6 375.3 376.8 1.1 20.60 54.0 East Graben FW

WKP76 2760432 6429892 226.0 169.8 -42.6 433.2 437.7 4.5* 11.17 75.3 East Graben FW

WKP77 2760155 6429851 181.9 126.6 -26.3 324.1 324.6 0.5* 43.90 49.0 East Graben HW

WKP77 2760155 6429851 181.9 126.6 -26.3 341.2 347.3 5.7 5.43 8.8 East Graben HW

WKP77 2760155 6429851 181.9 126.6 -26.3 361.1 366.1 4.7 4.52 7.4 East Graben

WKP77 2760155 6429851 181.9 126.6 -26.3 431.0 431.8 0.4 30.10 16.0 East Graben FW

WKP77 2760155 6429851 181.9 126.6 -26.3 459.8 462.1 2.0 20.93 60.7 East Graben FW

WKP77 2760155 6429851 181.9 126.6 -26.3 475.0 477.7 2.3 12.75 22.2 East Graben FW

WKP79 2760154 6429850 181.7 140.9 -32.3 163.7 164.8 0.8 18.00 89.0 East Graben HW

WKP79 2760154 6429850 181.7 140.9 -32.3 242.4 243.2 0.7 71.00 182.0 East Graben HW

WKP79 2760154 6429850 181.7 140.9 -32.3 387.3 389.0 1.2 16.48 41.3 East Graben HW

WKP80 2760434 6429896 225.8 64.4 -54.5 242.1 244.3 1.6 12.58 54.3 East Graben

WKP81 2760155 6429849 181.7 149.9 -22.7 152.8 154.0 0.8 18.60 91.0 East Graben HW

WKP81 2760155 6429849 181.7 149.9 -22.7 420.0 421.8 1.4 14.47 23.3 East Graben HW

WKP81 2760155 6429849 181.7 149.9 -22.7 433.7 466.9 25.4 38.66 64.5 East Graben Zone

including 2760155 6429849 181.7 149.9 -22.7 433.7 440.6 5.3 39.00 67.5 East Graben

and 2760155 6429849 181.7 149.9 -22.7 445.5 460.5 11.5 64.40 104.8 East Graben FW

and 2760155 6429849 181.7 149.9 -22.7 464.7 466.9 1.6 14.99 26.5 East Graben FW

WKP82 2760433 6429892 225.9 142.3 -46.7 250.0 252.6 1.5 136.85 63.2 East Graben FW

* Downhole length as true width not able to be determined

All drill data in relation to WKP can be found on the Company’s website at

http://www.oceanagold.com/investor-centre/filings/. In line with ASX listing requirements, OceanaGold has

appended the information required by JORC Table 1 for WKP exploration results to its ASX announcement.

JORC Table 1 is not required under National Instrument 43-101. Readers are referred to the ASX website at

www.asx.com.au or the OceanaGold website at www.oceanagold.com to view JORC Table 1.

- ENDS -

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For further information please contact:

Investor Relations Media Relations

Sam Pazuki

Tel: +1 720 602 4880

[email protected]

Melissa Bowerman

Tel: +61 459 900 099

[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 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.

In 2019, the Company expects to produce between 460,000 to 480,000 ounces of gold and 10,000 to 11,000

tonnes of copper at All-In Sustaining Costs ranging between $1,040 and $1,090 per ounce sold.

Competent/Qualified Person’s Statement

The resources and exploration results were prepared in accordance with the standards set out in the 2012

Edition of the ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’

(“JORC Code”) and in accordance with National Instrument 43 -101 – Standards of Disclosure for Mineral

Projects of the Canadian Securities Administrators (“NI 43-101”). The JORC Code is the accepted reporting

standard for the Australian Stock Exchange Limited (“ASX”).

Information relating to Waihi exploration results in this document has been verified by, is based on and fairly

represents information compiled by or prepa red under the supervision of Lorrance Torckler, a Fellow of the

Australasian Institute of Mining and Metallurgy and an employee of OceanaGold. Mr Torckler has sufficient

experience that is relevant to the style of mineralisation and type of deposit under consideration and to the

activity being undertaken to qualify as a Competent Person as defined in the JORC Code and is Qualified

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Persons for the purposes of the NI 43 101. Mr Torckler consents to the inclusion in this public report of the

matters based on their information in the form and context in which it appears.

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-

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.

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