Corporate Presentation September 2017 Cautionary & Technical - PowerPoint PPT Presentation

Consistently Delivering On Commitments Corporate Presentation September 2017

Cautionary & Technical Statements Cautionary Notes - Information Purposes Only The information contained in this presentation is provided by OceanaGold Corporation (“OGC”) for informational purposes only and does not constitute an offer to issue or arrange to issue, or the solicitation of an offer to issue, securities of OGC or other financial products. The information contained herein is not investment or financial product advice and has been prepared without taking into account the investment objectives, financial situation or particular needs of any particular person. The views, opinions and advice provided in this presentation reflect those of the individual presenters only. No representation or warranty, express or implied, is made as to the fairness, accuracy, completeness or correctness of the information, opinions and conclusion contained in this presentation. To the maximum extent permitted by law, none of OGC or any of its directors, officers, employees or agents accepts any liability, including, without limitation, any liability arising out of fault or negligence, for any loss arising from the use of the information contained in this presentation. Furthermore, this presentation does not constitute an offer of shares for sale in the United States or to any person that is, or is acting for the account or benefit of, any U.S. person (as defined in Regulation S under the United States Securities Act of 1933, as amended (the "Securities Act")) ("U.S. Person"), or in any other jurisdiction in which such an offer would be illegal. OGC’s shares have not been and will not be registered under the Securities Act. Cautionary Statement Concerning Forward Looking Information Certain information contained in this presentation may be deemed “forward - looking” within the meaning of applicable securities laws. Forward-looking statements and information relate to future performance and reflect OGC’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 OGC 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 OGC’s most recent annual information forms prepared and filed with securities regulators which are available on SEDAR at www.sedar.com under OGC’s name. There are no assurances OGC can fulfil forward-looking statements and information. Such forward-looking statements and information are only predictions based on current information available to management of OGC as of the date that such predictions are made; actual events or results may differ materially as a result of risks facing OGC, some of which are beyond OGC’s control. Although OGC believes that any forward-looking statements and information contained in this presentation are 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. OGC 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. Technical Disclosure The 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”) . For further scientific and technical information (including disclosure regarding mineral resources and mineral reserves) relating to the Haile Mine, the Macraes Mine and the Didipio Mine please refer to the NI 43-101 compliant technical reports available at sedar.com under the Company’s name. General Presentation Notes All AISC and cash costs are net of by-product credits unless otherwise stated ▶ All financials are denominated in US Dollars unless otherwise stated ▶ 2

OCEANAGOLD OVERVIEW CONSOLIDATED 2017 GUIDANCE AISC Gold Copper US $600 – US $650 per ounce 550,000 – 600,000 ounces 18,000 – 19,000 tonnes 2017 GUIDANCE ASSUMPTIONS Copper = $2.50/lb NZD:USD = 0.70 NEW ZEALAND UNITED STATES PHILIPPINES Auckland Waihi Didipio Manila Wellington Christchurch Macraes Haile Dunedin Davao City HAILE WAIHI MACRAES DIDIPIO 110,000 – 130,000 110,000 – 120,000 180,000 – 190,000 150,000 – 160,000 Gold (oz) 2017 PRODUCTION 18,000 – 19,000 Copper (t) 2017 AISC $600 – $650 $740 – $790 $950 – $1,000 $70 - $120 USD/oz sold GUIDANCE RESERVES (1) / Gold (Moz) 3.46 / 4.35 0.35 / 0.57 1.21 / 4.79 1.46 / 2.06 RESOURCES (1)(2) 0.18 / 0.24 Copper (kt) 2034+ 2019+ 2020+ 2032+ MINE LIFE 1. As at 31 Dec 2016 except Haile which is from 1 Jan 2017 2. Inclusive of reserves & Inferred resources 3

INVESTOR INFORMATION LARGEST SHAREHOLDERS Shareholder Geographic Composition Asia Other Blackrock (London) 1 3% 1% ANZ Van Eck Associates (New York) 2 9% United States Ingalls & Snyder (New York) 3 45% Franklin (San Francisco) 4 Europe 31% Commonwealth Bank (Sydney) 5 Royal Bank Investment (Toronto) 6 Tocqueville (New York) 7 Canada 11% Taylor Asset Management (Toronto) 8 TSX/ASX: OGC TICKER Dimensional Fund (Austin) 9 OTC: OCANF Vanguard Group (Sydney) 10 C$2.2 billion MARKET CAP (1) A$2.1 billion Deutsche Bank (Frankfurt/New York) 11 AVG. DAILY TRADING C$22 million M&G Investment (London) 12 VOLUMES (1) Newton (London) 13 CASH (2) US$82 million Oppenheimer (New York) 14 NET DEBT (2) US$248 million Fidelity (Boston) 15 1. On 21 Sep 2017 2. As at 30 Jun 2017 4

CURRENT PRIORITIES CONTINUED FOCUS ON BEING A HIGH ACHIEVING GOLD MINER DELIVER ON OUR COMMITMENTS Achieve 2017 guidance Communicate effectively with our stakeholders DELIVER ON HAILE Advance Haile to commercial production Commence permitting of Haile expansion CONTINUE TO PROVIDE SOLID RETURNS Making investment decisions that focus on high margins, high returns ADVANCE ORGANIC GROWTH OPPORTUNITIES Building a pipeline of organic growth opportunities and converting these opportunities Unlock value from existing assets FURTHER ENHANCEMENT OF SAFETY AND SOCIAL PERFORMANCE Drive forward stringent standards in health and safety Further strengthen social license 5

OPERATIONS OVERVIEW ON TRACK TO DELIVER ON GROUP 2017 GUIDANCE FOR SIXTH STRAIGHT YEAR GOLD PRODUCTION (oz) MAR Q JUN Q H1 2017 2017 GUIDANCE 272,352 147,956 124,396 550,000 – 600,000 COPPER PRODUCTION (t) H1 2017 2017 GUIDANCE MAR Q JUN Q 10,277 18,000 – 19,000 5,955 4,322 AISC (USD / oz sold) H1 2017 MAR Q JUN Q 2017 GUIDANCE $599 $521 $681 $600 – $650 HAILE Advance operation to commercial production, continued ramp-up  DIDIPIO U/G Deliver underground ore production at year end  WAIHI Mining of higher grade zones of the underground  MACRAES Commence production from Coronation North  6

TRIFR PERFORMANCE INCREASING FOCUS & ENGAGEMENT ON HEALTH AND SAFETY EXCELLENCE LEADERSHIP Senior leaders increasing focus on one-on-one safety engagements, task observations and workplace inspections ENGAGEMENT Rolling out workforce engagement programs to focus on improved safety behaviours ENHANCED INVESTIGATIONS Improving incident investigations and associated corrective / preventative actions Total Recordable Injury Frequency Rate 13.06 14 12 10 8.09 8 5.49 6 4.56 3.99 3.74 4 2.69 2 0 2011 2012 2013 2014 2015 2016 H1 2017 *Note. Total Recordable Injury Frequency Rate = (number of recordable injuries / number of hours worked) x 1,000,000 7

GOLD MINER OF CHOICE COMPELLING VALUE PROPOSITION FROM GROWING, HIGH-MARGIN GOLD PRODUCER EBITDA Margin (3) 60% 2018E AISC (1) (per oz) OceanaGold Peer Average 50% Producer Avg. OGC 40% $781 $595 30% 20% 10% 2018E FCF Yield (1) 0% OGC Producer Avg. -10% 2010 2011 2012 2013 2014 2015 2016 16 % 5 % Return on Invested Capital (3) 20% OceanaGold Peer Average 15% 2018E P/CF (2) 10% OGC Producer Avg. 5.3 x 8.7 x 5% 0% Notes: -5% 1. BMO Research (18 Sep 2017) 2010 2011 2012 2013 2014 2015 2016 2. Macquarie Research (17 Sep 2017) 3. Bloomberg, Company data 8