Saturday, September 26, 2026
MiningNewsTerminal
Saturday, September 26, 2026 Admin

OGC.TO ·

Oceanagold Extends High-Grade GOLD and Silver Mineralisation at Wkp

Drill Results

1

MEDIA RELEASE

19 September 2018

OCEANAGOLD EXTENDS HIGH-GRADE GOLD AND SILVER MINERALISATION

AT WKP

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

the intersection of additional high-grade gold mineralisation along the East Graben vein at the Company’s

WKP prospect in New Zealand. These drill results add strike length, support the high-grade results reported

in July 2018 and form part of a more extensive ongoing exploration drill programme.

Significant Intercepts (true widths)

• 5.0m @ 39.04 g/t Au, 76.6 g/t Ag

• 3.6m @ 35.79 g/t Au, 43.3 g/t Ag

• 4.5m @ 10.46 g/t Au, 7.5g/t Ag

• 2.1m @ 23.08 g/t Au, 49.5 g/t Ag

Mick Wilkes, President and CEO of OceanaGold said, “ The drill results at WKP continue to yield significant

high-grade intercepts. The latest results indicate an extension to the known current strike length of the East

Graben vein, which remains open in both di rections. We continue to drill here as well as other major vein

structures being discovered.” He added, “Drilling at WKP commenced with one drill rig in August of 2017 and

as the drill program delivered positive results, we allocated additional resources a nd investment to support

the exploration program. With the latest results, two rigs are dedicated to resource definition drilling and

follow up drilling is planned on other areas of high-grade mineralisation.”

The Company commenced exploration of the WKP prospect in August 2017 and to date has drilled 10,386

metres from 19 holes. Since the July 2018 exploration update, 2,381 metres have been drilled at WKP

focussing on the potential of the East Graben Vein; one of three major low sulphidation epithermal gold-silver

veins identified so far within the WKP prospect area (Figure 1). In addition to these known veins, multiple

high-grade veins in the hangingwall and footwall of the East Graben Vein have been intercepted and require

further drilling.

The drilling completed since the July 2018 exploration update has continued to successfully intersect high -

grade mineralisation, increasing the strike length by a further one third to a total delineated strike length of

approximately one kilometre. The high-grade mineralisation is open in both directions , with 200 metres of

vertical extent which is open for a further 100 - 200 metres up-dip (Figure 2).

Exploration activities will now mainly be focused on infill resource drilling within areas that have returned best

true width intercepts, including 5.0m @ 39.04 g/t gold and 3.6m @ 35.79 g/t gold (Figure 2, Table 1).

2

For the remainder of 2018, the Company expects to complete 5,300 metres of infill resource definition

diamond drilling and to further drill testing of the other major veins on the prospect.

Figure 1: Plan View of geology and distribution of known veins at WKP

Figure 2: Long Section on the East Graben Vein

3

Table 1: Recent Significant Diamond Drill Intersections (July 2018 to September 2018)

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

WKP53 2760147 6429860 181 171.6 -27.4 179.0 182.1 0.8 12.23 46.1 East Graben HW

WKP53 2760147 6429860 181 171.6 -27.4 245.7 246.5 0.3 12.00 101.0 East Graben HW

WKP53 2760147 6429860 181 171.6 -27.4 253.2 254.1 0.5 13.20 15.0 East Graben HW

WKP53 2760147 6429860 181 171.6 -27.4 583.7 590.1 4.5 10.46 7.5 East Graben

WKP54 2760147 6429860 181 159.5 -25.1 140.0 141.1 0.7 20.40 69.0 East Graben HW

WKP54 2760147 6429860 181 159.5 -25.1 225.0 225.7 0.4 50.60 157.0 East Graben HW

WKP54 2760147 6429860 181 159.5 -25.1 499.0 506.7 5.0 39.04 76.6 East Graben

WKP54 2760147 6429860 181 159.5 -25.1 536.1 540.8 3.6 35.79 43.3 East Graben FW

WKP54 2760147 6429860 181 159.5 -25.1 547.0 548.5 0.9 32.41 22.7 East Graben FW

WKP55 2760406 6430099 180 120.7 -46.9 130.1 131.0 0.9 5.57 5.0 East Graben HW

WKP55 2760406 6430099 180 120.7 -46.9 250.6 251.8 1.2 4.02 17.0 East Graben

WKP55 2760406 6430099 180 120.7 -46.9 305.9 307.8 1.0 6.59 10.3 East Graben FW

WKP55 2760406 6430099 180 120.7 -46.9 319.5 320.2 0.5 7.92 26.0 East Graben FW

WKP55 2760406 6430099 180 120.7 -46.9 348.3 350.6 2.3 5.08 19.2 East Graben FW

WKP56 2760406 6430099 180 84.3 -42 160.0 162.0 2.0* 19.65 11.0 East Graben HW

WKP56 2760406 6430099 180 84.3 -42 214.0 215.0 0.8 6.28 9.0 East Graben HW

WKP56 2760406 6430099 180 84.3 -42 299.9 300.9 0.8 32.90 30.0 East Graben

WKP56 2760406 6430099 180 84.3 -42 407.0 408.3 0.7 7.33 6.0 East Graben FW

WKP57 2760406 6430099 180 151.2 -32 285.7 287.9 2.1 23.08 49.5 East Graben

* Downhole length as true width not able to be determined

All drill data and additional information in relation to the WKP prospect 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 In strument 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 -

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

4

[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. 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 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

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.

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 Nationa l 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 prepared 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

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 rega rding the generation of free cash flow, execution of business

5

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 b e 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 includ e, 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 information. Such forward -looking

statements and information are only predictions based on current informati on 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, 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.

NOT FOR DISSEMINATION OR DISTRIBUTION IN THE UNITED STATES AND NOT FOR DISTRIBUTION

TO US NEWSWIRE SERVICES.