OceanaGold Reminds CDI Holders of Final Date to Convert to Shares

Of the elections received to date, 75% of CDIs have been converted to TSX listed shares.  Upon closing of the Voluntary Sale Facility, any remaining CDIs will be sold under the Compulsory Sale Process without further notice.

A letter including the full breakdown of options for CDI holders, together with a personalised Conversion Request Form and Sale Election Form, was posted by Computershare on September 7, 2022 on behalf of OceanaGold to the registered address of CDI holders. As the forms contain pre-populated personal information, it was only sent via post and not electronically. If you have not received the letter and the forms, please contact Computershare or OceanaGold at the information set out below.

Computershare between 8.30am and 5.00pm (Australian Eastern Daylight Savings Time)

• Phone: 1300 850 505 (within Australia) or +61 3 9415 4000 (outside Australia)
• Email: #AUCSMELCorporateActions@computershare.com.au

OceanaGold Investor Relations team

• Email: ir@oceanagold.com

For further information please contact:

Investor Relations:

Brian Martin, Senior Vice President, Business Development & Investor Relations
Tel: +1 604-763-4438
ir@oceanagold.com

Sabina Srubiski, Director, Investor Relations
Tel: +1 604-351-7909
ir@oceanagold.com

In Europe:
Swiss Resource Capital AG
Jochen Staiger
info@resource-capital.ch
www.resource-capital.ch

Media Relations:

Anita Kharbanda, Acting Group Manager, Communications
Tel: +61 420 696 937
info@oceanagold.com

www.oceanagold.com  |   Twitter: @OceanaGold