OceanaGold 提交 Macraes 第四期扩建许可申请并公布钻探进展

, /CNW/ — OceanaGold Corporation（TSX: OGC, NYSE: OGC）（“OceanaGold”或​“公司”）宣布，其已根据新西兰《2024年快速审批法》提交 Macraes 第4阶段项目（“MP4”）的审批申请。MP4 申请旨在将 Macraes 的矿山寿命从当前储量寿命2032年延长至2030年代末，这与 Macraes 自 1990年投产以来一贯延长矿山寿命的历史相符。

公司还提供了有关技术研究和勘探成果的详细信息，这些成果支持通过MP4及 其后阶段延长Macraes矿山寿命的潜力。

OceanaGold 总裁兼首席执行官 Gerard Bond 表示​“提交 MP4 申请是确保 Macraes 长期未来的重要一步，通过获批额外的露天矿坑扩帮以及将矿山寿命延长至 2030 年代末。近期钻探既支持 MP4 中包含的延长期，也发现了进一步的机会，有可能使有意义的黄金生产延续至 2040 年代。

36 年来，Macraes 一直安全、负责任地生产黄金，通过维持数百个就业岗位、对社区的社会经济贡献、税收和特许权使用费以及出口收入，为周边社区和新西兰带来了跨代际的惠益。我们的许可申请和勘探结果表明，Macraes 有潜力延续其悠久的价值创造历史，同时为我们的利益相关者带来强劲回报。”

如需了解该矿区的可视化概览、矿山寿命延长机会和钻探结果，请观看随附的3D视频：

https://​vri​fy​.com/​m​e​e​t​i​n​g​s​/​r​e​c​o​r​d​i​n​g​s​/​7​0​c​5​e​e​5​0​-​9​e​c​c​-​4​e​8​1​-​a​2​2​2​-​7​d​7​4​4​9​d​a6ec8

VRIFY note: Drill results reflect only those set forth in OceanaGold’s press release dated September 9, 2026, and do not include all historical drill results except those relevant to the current targets in this release.

Macraes 概览

Macraes 位于新西兰南岛，在但尼丁（Dunedin）西北约 60 公里（“km”）处。Macraes 于 1990 年投产，初始矿山寿命为 7 年。今年 7 月，该矿庆祝了其 36 年运营历史中累计产金 6 百万盎司。Macraes 拥有超过 14,000 公顷的地质前景良好的土地组合，其中包括一条 30 公里长、高度矿化的构造带，称为 Macraes 剪切带（Macraes Shear Zone），该构造带赋存多个金矿床和勘探目标（图 1）。

查看配图：Figure 1: Macraes Property Overview

Macraes 矿山寿命延长潜力

MP4 快速通道申请

On September 9, 2026, the Company lodged its Fast-track application for the MP4 project. The MP4 application includes:

• 为完成当前储量矿山计划所需的所有活动办理许可；
• Southern Pit Innes Mills（“SPIM”，详情见下文）的开发；
• Golden Point Underground（“GPUG”）的延伸部分；以及
• 具有灵活性，可将更多矿产资源纳入未来的生产 规划。

MP4的获批将使Macraes矿山的运营延长至2030年代末。根据新西兰政府的​“一站式”审批流程，公司预计MP4将于2027年中期获得全部许可（以申诉结果为准）。MP4许可获批是延长矿山寿命的必要条件，但还需取得其他辅助许可、通过令人满意的技术和财务审查，并满足市场与运营 条件。

MP4工程的批准及后续实施，将使Macraes运营在未来许多年继续对奥塔哥地区乃至整个新西兰产生强劲的积极影响，带来大量投资，维持当前及未来的就业机会，并持续提供有意义的社会、环境和经济惠益。

公司熟悉快速审批流程，已于 2025年成功为 Waihi North 项目取得许可。

矿山寿命延长技术研究

MP4的获批将使公司能够推进Innes Mills、Coronation、Coronation North和Golden Bar露天矿的扩建。MP4还包括Golden Point地下矿的矿山寿命延长，为未来发展提供额外灵活性。

MP4还包括当前Innes Mills露天矿以北的延伸部分，称为SPIM。目前正在进行高级研究，以在2026年底前将SPIM纳入矿产资源量，并得到前几年完成的钻探工作的支持。

公司认为，SPIM 有能力从 2032 年起为 Macraes 贡献可观的产量。结合 Golden Point 地下矿的延伸，公司计划将 Macraes 的年产量维持在 100,000 盎司以上，并延续至 2030 年代后期。

有关 Macraes 预期产量概况、SPIM 开发时间表、资本支出和整体经济性的详细信息，将包含在预计于 2028 年初发布的更新版《国家文书 43 – 101 矿业项目披露标准》（“NI 43 – 101”）技术报告中。

SPIM 的开发资本将包括废石剥离、倒运，以及将部分历史尾矿搬迁至现有的 Frasers 尾矿储存设施、搬迁露天矿车间、改道公共道路，以及升级现场电力基础设施。

推进 SPIM 还具有提升 Round Hill 矿床开采可行性的好处，该矿床此前已在 2023 年末从矿产资源中移除。Round Hill 矿床未包含在 MP4 中，代表着将矿山寿命延长至 2040 年代的潜在机会。

Macraes 勘探概览

Macraes 的 2026 年勘探计划重点在于支持 MP4 及以后所概述的矿山寿命延长。在 2026 年预计创纪录的 13 百万美元支出的支持下，Macraes 正在执行总计 60,000 米（“m”）的钻探。Innes Mills、Coronation 和 Nunns 露天矿，以及 Golden Point 地下矿，继续显示出进一步的资源转化和增长的巨大潜力。

Macraes 钻探结果

Innes Mills

Innes Mills has been the main open pit ore source since 2024, accounting for approximately 39% of total Measured and Indicated Mineral Resource ounces for Macraes as at December 31, 2025. Drilling since the last resource estimate has focused on conversion of Inferred Mineral Resources in, and down dip of, the current reserve open pit design, with more than 12,000 m across 48 holes completed (Table 1). Drill hole DDH8224 returned 25.0 m @ 0.8 g/​t gold (“Au”), confirming that mineralization continues at least 150 m down dip, towards the east, beyond the Innes Mills current reserve open pit design (Figure 2). This area is a target for additional resource expansion drilling in the remainder of this year to confirm the economic feasibility of additional future open pit cutbacks.

查看配图：Figure 2: Innes Mills cross section (looking north-northwest) highlighting recent significant intercept DDH8224 in relation to the Innes Mills current reserve open pit design.

Golden Point Underground (GPUG)

GPUG 位于历史悠久的 Golden Point 和 Round Hill 露天矿的下倾方向紧邻处，这两个露天矿于 1990 年至 2002 年间开采，共生产了约 1.3 百万盎司黄金。GPUG 的地下开采于 2021 年开始。

Since the last resource estimate for the year ended December 31, 2025, more than 13,000 m of drilling across 37 holes has been completed, targeting both conversion and extension opportunities (Table 1).

在北部，DDH8281在当前矿山计划倾向下方约40 m 处向外延伸，见矿12.0 m @ 2.1 g/​t Au，证实了经济矿化沿倾伏方向继续延伸。在南部，从现有矿山计划向外延伸 40 m 处报告见矿15.0 m @ 1.5 g/​t Au（DDH8412）。这些结果远高于当前地下储量边界品位，支持未来在东部和东南部实现资源量和储量增长的潜力（图3）。GPUG将在今年剩余时间内继续钻探，目标是沿倾向向下和沿走向向南延伸矿化，该矿床在这些方向仍未封闭，以进一步扩大资源量。

查看配图：Figure 3: Plan view map of GPUG highlighting recent significant intercepts DDH8281 and DDH8412 located outside the current underground design.

Coronation

Coronation 露天矿位于选矿厂东北约 5 公里处。自上次资源估算以来，已在 Coronation 完成超过 6,000 米的钻探，共 36 个钻孔，重点是将推断矿产资源量（表 1）转换为更高类别。

显著结果包括 7.9 米 @ 5.4 克/吨金（DDH8286）、12.0 米 @ 2.3 克/吨金（DDH8298）、21.0 米 @ 1.1 克/吨金（DDH8283）以及 6.0 米 @ 1.7 克/吨金（DDH8367），这些结果支持一个向东南方向倾伏的较高品位带的出现（图 4）。该区域向东南方向仍然开放，计划开展进一步勘探钻探，以追踪该较高品位趋势在现有采坑设计之外的延伸，为未来的采坑扩帮提供支持。

查看配图：Figure 4: Coronation cross section (looking northeast) highlighting recent significant intercepts DDH8298, DDH8286 and DDH8283, in relation to the Coronation current reserve open pit design.

Nunns

The Nunns prospect, containing a small resource defined in 2017, is located at the northwestern end of the Macraes property, approximately 6 km along strike from Coronation. Following the Company’s additional land purchase in early 2026, a drill program focused on converting and growing the existing Mineral Resources, with 4,250 m of drilling across 48 drill holes was completed (Table 1). Notable results included 14.0 m @ 2.5 g/​t Au (RCH8374), 8.0 m @ 4.2 g/​t Au (RCH8375) and 4.0 m @ 7.9 g/​t Au (RCH8344), confirming the extension of mineralization down dip and along strike, outside of the known resource (refer to VRIFY).

Nunns 的矿化对 Macraes 而言代表了一个潜在的低资本、未来露天矿矿石来源，且位于 MP4 许可申请范围之外。预计将在 2026 年底纳入更新的资源估算。

表 1：自 2025 年资源估算以来 Macraes 的重要钻探见矿段^[1]

有关钻孔数据的更多信息，请参阅公司网站 https://​oceanagold​.com/​o​p​e​r​a​t​i​o​n​s​/​a​d​d​i​t​i​o​n​a​l​-​d​r​i​l​l​h​o​l​e​-data。

关于OceanaGold

OceanaGold 是一家全球性的中型黄金和铜生产商，致力于安全、负责任地最大化我们运营产生的自由现金流，并为我们的股东带来强劲回报。我们拥有四座在产矿山的资产组合：位于美利坚合众国的全资拥有的 Haile 金矿；位于新西兰的全资拥有的 Macraes 和 Waihi 运营项目；以及位于菲律宾的持股 80% 的 Didipio 矿山。

如需了解更多信息，请联系：

投资者关系：

业务发展与投资者关系高级副总裁 Brian Martin
电话：+1 604−678−4096
ir@​oceanagold.​com

Valerie Burns，投资者关系总监 
电话：+1 604−235−0742 
ir@​oceanagold.​com

媒体关系：

传播副总裁 Louise Burgess 
电话：+1 604−403−2019 
media@​oceanagold.​com

合资格人士声明

除本文件另有规定外，本新闻稿中的科学和技术信息已由 Knowell Madambi 审阅并批准，其为符合 NI 43 – 101 定义的合格人员。Madambi 先生是 OceanaGold 的技术服务与项目经理。本新闻稿中与勘探事项相关的科学和技术信息已由 Keenan Jennings 先生审阅并批准，其为符合 NI 43 – 101 定义的合格人员。Jennings 先生是 OceanaGold 的执行副总裁兼首席勘探官。

质量保证与质量控制（“QA/QC”）

Macraes 运营的采样和分析过程是在标准操作程序（SOPs）所规定的框架内进行的。

RC钻探采用5 1/​2英寸钻头进行，样品通常按1米组合样采集。地质师在RC钻机现场通过测量原样、副样和总体样品，对RC岩芯采取率进行实时监控。勘探钻探的金刚石岩芯尺寸主要为PQ和HQ。DD采取率由钻工实时记录，并由地质师核查。总体而言，Macraes矿区矿带的金刚石岩芯采取率非常好（>98%）。

每个米段均采集野外重复样，RC样品通过12.5%的缩分器进行子采样。近似缩分比例为原样12.5%、重复样12.5%。金刚石岩心采样为全岩心采样与½岩心采样的混合方式。全岩心PQ和HQ岩心采样所得样品长度小于1m。当岩心破碎脆弱时采用全岩心采样。2026年5月之前的半岩心采样使用手动岩心锯进行，2026年5月之后使用自动岩心锯进行。自动锯产生的重复岩心重量显示重量方差有所改善。

RC 和 DD 样品被送至由 SGS 运营的现场实验室，该实验室独立于 OceanaGold。样品在 150° 下干燥 4 小时，破碎至 3.5mm，并通过线性样品分样器分取 400 – 500g 进行化验。粗分样副样按 1:20 的比例采集。

400 – 500g 样品通过现场 Photon Assay 设备进行化验。

独立认证标准物质（“CRMs”）粗标样按 1:20 的比例、根据 OceanaGold 的指示插入。SGS 还按 1:20 的比例插入一组矿浆 CRMs 和空白样。

在将结果上传至 acQuire 数据库之前，空白样、重复样和 CRM 结果均按逐孔方式予以审核。SGS 每月对提交给 Chrysos 的标准样和空白样进行 QC 审查，详细说明超出警告和行动容差的结果。部分检查样品还送至新西兰 Waihi 的 SGS 进行火试金分析。

SGS NZ Ltd 实验室是一家独立的商业化验实验室，拥有 ISO 17025: 2017 认证。Chrysos Corporation 运营一台设备，该设备租赁给 OceanaGold 的 Macraes 运营部。

技术报告

For further information, please refer to the following NI 43 – 101 technical report entitled ​“NI 43 – 101 Technical Report – Macraes Operation Otago, New Zealand”, dated March 27, 2026 with an effective date of December 31, 2025, prepared by M. Grant, K. Madambi, E. Leslie and D. Carr (OceanaGold), which is available under OceanaGold’s profile on SEDAR+ at www​.sedarplus​.ca and on EDGAR at www​.sec​.gov and on the Company’s website at www​.oceanagold​.com. Each of Messrs Grant, Madambi, Leslie and Carr is an employee of OceanaGold

公开发布的警示性声明

This news release contains certain ​“forward-looking statements” and ​“forward-looking information” (collectively, ​“forward-looking statements”) within the meaning of applicable Canadian and United States securities laws which may include, but are not limited to, statements with respect to: the extension of mine life at Macraes to the late 2030s and potential gold production into the 2040s and the anticipated benefits therefrom; the timing and receipt of required permits for MP4 under the Fast-track approval process; the expected impacts on the Otago region and New Zealand of MP4; the timing for including SPIM in the Company’s Mineral Resources estimate for the year ended December 31, 2026; anticipated production levels for Macraes with SPIM and the extension of GPUG; timing of filing of an updated NI 43 – 101 technical report for Macraes; future exploration activities at Macraes and the anticipated timing, costs and benefits therefor; anticipated exploration results and developments at Macraes in future periods; the estimation, realization and classification of Mineral Reserves and Mineral Resources at Macraes; estimates of exploration expenditures; timing of the development of new deposits; timing and focus of the 2026 exploration and drilling programs at Macraes; and geotechnical and operational conditions. All statements in this news release that address events or developments that the Company expects to occur in the future are forward-looking statements. Forward-looking statements are statements that are not historical facts and are generally, although not always, identified by words such as ​“may”, ​“plans”, ​“expects”, ​“projects”, ​“is expected”, ​“scheduled”, ​“potential”, ​“estimates”, ​“forecasts”, ​“intends”, ​“targets”, ​“aims”, ​“anticipates” or ​“believes” or variations (including negative variations) of such words and phrases, or may be identified by statements to the effect that certain actions, events or results ​“may”, ​“could”, ​“would”, ​“should”, ​“might” or ​“will” be taken, occur or be achieved.

Forward-looking statements involve known and unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. Such risks include, among others: the risk of not achieving the Company’s production estimates, forecasts or Guidance; inaccuracy of Mineral Reserves, Mineral Resources and operating and capital cost estimates; the actual results of current and future production, development and/​or exploration activities; possible variations of ore grade, metallurgy or recovery rates; changes in mine plans, project parameters or assumptions as plans continue to be refined; delays in, or inability to complete, development or construction or expansion activities or to re-commence or sustain operations as planned; failures or underperformance of plant, equipment, infrastructure or processes; geotechnical risks or events, including open pit wall stability, crown pillar failure, land subsidence and tailings dam failures; scarcity in and disruption of global supply chain and/​or increases in prices, including as a result of international conflicts, such as the recent and ongoing U.S.-Iran conflict; challenges associated with effective water management; environmental, health and safety and climate-related risks; risks related to community acceptance, stakeholder engagement and social licence to operate; competition for mineral properties and other growth opportunities; legal and regulatory challenges to current and future permits, certifications, approvals or licences; adverse judicial, regulatory or governmental decisions; delays in, or inability to obtain, financing or governmental approvals on acceptable terms; changes in laws, regulations, taxation regimes, regulated accounting standards or their interpretation or application; the risks associated with operating in foreign jurisdictions, including political instability, changes in policy or law, civil unrest, blockades or conflict; fluctuations in the prices of gold, copper and silver; general business, economic and market conditions (including changes in global, national or regional financial, credit, currency or securities markets); changes or developments in global, national or regional political and social conditions; fluctuations in foreign exchange rates, including the value of the U.S. dollar relative to the Canadian dollar, the New Zealand dollar or the Philippine peso; trade policies and tensions, including tariffs; inflationary pressure; labour availability, retention and turnover; accidents, labour disputes, work stoppages and other operational risks of the mining industry; limitations of insurance coverage or uninsured risks; the conclusions of economic evaluations, studies and models; information technology, artificial intelligence and cybersecurity risks; and those other factors identified and described in more detail in the section entitled ​“Risk Factors” contained in the Company’s most recent Annual Information Form and the Company’s other filings with Canadian securities regulators and the U.S. Securities and Exchange Commission (the ​“SEC”), which are available under the Company’s profile on SEDAR+ at sedarplus​.ca and on EDGAR at sec​.gov, respectively, and on the Company’s website at oceanagold​.com. The list is not exhaustive of the factors that may affect the Company’s forward-looking statements.

公司的前瞻性陈述基于管理层截至本文件日期根据当时管理层可获得的信息认为合理的适用假设和因素。这些假设和因素包括但不限于与公司开展当前和未来运营能力相关的假设和因素，包括：勘探和开发活动；此类运营的时间安排、范围、持续时间和经济可行性；估计、预测、预报、研究和评估的准确性和可靠性；公司实现或达成指引、估计、预测和预报的能力；投入品的可获得性和成本；产出品（包括黄金、铜和白银）的价格和市场；汇率；税率水平；及时获得必要的许可、认证、批准或执照；履行当前和未来义务的能力；在需要时以合理条件及时获得融资的能力；当前和未来的社会、经济和政治状况；以及与采矿 行业普遍相关的其他假设和因素。

公司的前瞻性陈述基于管理层的意见和估计，反映其当前对未来事件和经营业绩的预期，且仅截至本文件日期有效。除适用法律要求外，公司不承担在情况或管理层的信念、预期或意见发生变化时更新前瞻性陈述的任何义务。无法保证前瞻性陈述将被证明准确，实际结果、业绩或成就可能与这些前瞻性陈述中表达或暗示的内容存在重大差异。因此，无法保证前瞻性陈述所预期的任何事件将会发生或出现，或者如果其中任何事件发生，公司将从其中获得何种利益或承担何种责任。鉴于上述原因，不应过度依赖前瞻性陈述。

致美国读者的警示性声明

The scientific and technical disclosure in this press release was prepared in accordance with NI 43 – 101, which differs from the scientific and technical disclosure requirements of the SEC that are applicable to domestic United States reporting companies. In particular, and without limiting the generality of the foregoing, the terms ​“Mineral Reserve”, ​“Proven Mineral Reserve”, ​“Probable Mineral Reserve”, ​“Inferred Mineral Resources,”, ​“Indicated Mineral Resources,” ​“Measured Mineral Resources” and ​“Mineral Resources” used or referenced in this press releases are Canadian mineral disclosure terms as defined in accordance with NI 43 – 101 and the Canadian Institute of Mining, Metallurgy and Petroleum (the ​“CIM”) – CIM Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as amended (the ​“CIM Definition Standards”). The definitions of these terms, and other mining terms and disclosures, differ from the definitions of such terms, if any, for purposes of the SEC’s disclosure rules for domestic United States reporting companies and any Mineral Reserves and Mineral Resources reported by the Company in accordance with NI 43 – 101 may not qualify as such under SEC standards, including Subpart 1300 of Regulation S‑K under the United States Securities Exchange Act of 1934, as amended. As a foreign private issuer that is eligible to file reports with the SEC pursuant to the multi-jurisdictional disclosure system, the Company is not required to provide disclosure on its mineral properties under applicable SEC rules and regulations and provides disclosure under NI 43 – 101 and the CIM Definition Standards. Accordingly, Mineral Resources and Mineral Reserves information and other scientific and technical information contained or referenced in this press release may not be comparable to similar scientific and technical information disclosed by United States public companies subject to the reporting and technical disclosure requirements of the SEC.

不构成矿产储量的矿产资源不具有已证实的经济可行性。由于实测、指示或推断矿产资源存在不确定性，这些矿产资源可能永远无法升级为探明和概略矿产储量。提醒投资者不要假设这些类别中的任何部分矿床将会转化为储量或被回收。此外，提醒美国投资者不要假设公司的任何部分或全部实测、指示或推断矿产资源构成或将转化为矿产储量，或在没有额外工作的情况下具有或将具有经济或法律上的可开采性。

本文所呈现的历史结果或可行性模型并非对未来业绩的保证或预期。

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