Oceanagold Provides Notice of First Quarter 2018 Results Release Date and Conference Call / Webcast

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MEDIA RELEASE

10 April 2018

OCEANAGOLD PROVIDES NOTICE OF FIRST QUARTER 2018 RESULTS RELEASE

DATE AND CONFERENCE CALL / WEBCAST

(MELBOURNE) OceanaGold Corporation ( TSX/ASX: OGC) (the “Company”) will release its financial and

operational results for the first quarter ending 31 March 201 8 before the TSX market open on Thursday 26

April 2018 (Toronto, Canada time). The results will be posted on the Company’s website at

www.oceanagold.com.

The Company will host a conference call / webcast to discuss the results at 7:30 am on 27 April 201 8

(Melbourne, Australia time) / 5:30 pm on 26 April 2018 (Toronto, Canada time).

Webcast Participants

To register, please copy and paste the link below into your browser:

https://event.on24.com/wcc/r/1631737/723AE3A068B2C9D59CFC87B9A16F8A2F

Teleconference Participants (required for those who wish to ask questions)

Local (toll free) dial in numbers are:

Australia: 1 800 076 068

New Zealand: 0 800 453 421

Canada & North America: 1 888 390 0546

All other countries (toll): + 1 416 764 8688

Playback of Webcast

If you are unable to attend the call, a recording will be available for viewing on the Company’s website.

- ENDS -

For further information please contact:

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Investor Relations

Sam Pazuki

Tel: +1 416 915 3123

Jeffrey Sansom

Tel: +61 3 9656 5300

Media Relations

Melissa Bowerman

Tel: +61 3 9656 5300

[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. 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 open 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 over the pas t 27 years with a proven track -record for environmental

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

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

designed to build capacity and not dependency.

In 2018, the Company expects to produce 480,000 to 530,000 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.

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