ARIS MINING REPORTS Q3 2025 RESULTS

Segovia Ramp-Up Driving Profitable Growth: Record Revenue, Cash Flow, and Adjusted Earnings 

VANCOUVER, BC, Oct. 29, 2025 /PRNewswire/ - Aris Mining Corporation (Aris Mining or the Company) (TSX:ARIS) (NYSE-A: ARMN) announces its financial and operating results for the three and nine months ended September 30, 2025 (Q3 2025 and 9M 2025). All amounts are in U.S. dollars unless otherwise indicated.

Q3 2025 Financial Performance

• Revenue of $253.5 million, up 27% from Q2 2025 and 93% from Q3 2024, driven by higher gold prices and increased sales volumes.
• Adjusted EBITDA¹ of $131.1 million, up 33% from Q2 2025 and triple Q3 2024. On a trailing 12-month basis, Adjusted EBITDA¹ has reached $352.0 million.
• Adjusted net earnings¹ of $71.8 million or $0.36/share, up from $0.27/share in Q2 2025 and $0.08/share in Q3 2024.
• Cash balance increased to $417.9 million as of September 30, 2025, up from $310.2 million at June 30, 2025. This increase primarily reflects:
  • $90.8 million of cash flow after sustaining capital and income taxes;
  • $60.5 million of proceeds from the exercise of ARIS.WT.A warrants (July 2025 expiry); and
  • $13.2 million of proceeds from the sale of the Juby Gold Project; partially offset by
  • $48.1 million invested in growth capital.
• Net debt reduced to $64 million, down from $241 million at year-end 2024.

Neil Woodyer, CEO, commented "The production ramp-up at Segovia is progressing well, leading to record financial results and a cash balance of $418 million. This year, we have also delivered two major technical studies – the Soto Norte Prefeasibility Study and the Toroparu Preliminary Economic Assessment. These projects reinforce the strength of our growth pipeline beyond Segovia and Marmato, where construction of the Bulk Mining Zone remains on schedule for first gold in the second half of 2026. With record revenue, cash flow, and earnings in Q3, Aris Mining is financially strong and strategically positioned for continued growth into 2026 and beyond."

Q3 2025 Operational Performance

• Gold production totaled 73,236 oz, a 25% increase from 58,652 oz in Q2 2025. Production has progressively increased following the June 2025 commissioning of the second mill at Segovia on time and within budget.
• Marmato Narrow Vein Zone produced 7,687 oz, an 8% increase over Q2 2025 and 26% higher than Q3 2024, supported by stable throughput and higher average gold grades.
• Segovia Operations produced 65,549 oz, supported by gold grades of 9.9 g/t, gold recoveries of 96.1%, and a 31% increase in tonnes milled compared to Q2 2025.
  • AISC margin increased to $121.5 million, up 39% from Q2 2025. On a trailing 12-month basis, AISC margin has reached $327.9 million.
  • Owner-operated Mining AISC was $1,452/oz compared to $1,520/oz in Q2 2025, bringing the 9M 2025 average to $1,482/oz, tracking toward the lower end of the full year 2025 guidance range of $1,450/oz to $1,600/oz.
  • Contract Mining Partner (CMP) sourced gold delivered an AISC sales margin of 44%, contributing to a 43% margin for 9M 2025, which is above the full-year 2025 guidance range of 35% to 40%.
  • Total AISC of $1,641/oz compared to $1,681/oz in Q2 2025, reflecting per ounce cost improvements primarily due to increased gold sales volumes.

Corporate and Project Development Highlights

• Strong cash generation funding growth:
  • Operations generated $90.8 million in cash flow after sustaining capital and income taxes in Q3 2025, fully funding all growth and expansion initiatives. After expansion capital, Aris Mining generated $42.6 million in net cash flow. See the Quarterly cash-flow summary in the following sections for additional cash flow analysis.
• Marmato Bulk Mining Zone construction advancing:
  • Development of the main access decline has advanced 580 metres of the planned 1.7 kilometres. Current development rates average 72 metres per month and are expected to increase to approximately 150 metres per month once beyond the fault zone, with completion of the full decline length targeted for August 2026.
  • The Los Indios crosscut is advancing toward its connection with the main decline, now approximately 320 metres away. This horizontal development will provide an additional access and ventilation pathway, enable ore and waste haulage between existing workings and new infrastructure. Importantly, completion of the crosscut will enhance operational flexibility and de-risk the project's ramp-up phase by allowing multiple access points for early development and production sequencing.
  • Surface construction activities continue to advance safely, with over 2.06 million workhours completed to date. Bulk earthworks for the process plant platform have reached 95% completion (294,000 m³ moved), and the retaining wall is over 75% complete. Final shaping of the carbon-in-pulp (CIP) plant platforms is expected during the first week of November 2025.
  • Major equipment, including the primary crusher, SAG mill, ball mill, and filter press, has arrived in Cartagena. Approximately 95% of long-lead items have been ordered. The contract for the main civil, mechanical, and electrical works is in place, with the contractor mobilized and construction activities commenced in October.
  • Preparations for the new powerline continue to advance. Land acquisition is complete, and the environmental impact study has been submitted for approval, enabling construction to commence in March 2026 following permit issuance. To ensure continuity of commissioning and early operations, back-up generators are included in the site power plan to mitigate any potential delays in the grid power connection.
  • During Q2 and Q3 2025, we invested $20.1 million and $23.9 million, respectively, toward the construction budget.
  • At the end of Q3, the estimate to complete the project was $250 million, reflecting approximately $40 million of progress made over the six-month period since the prior estimate of $290 million at the end of Q1, which had incorporated the scope increase from 4,000 to 5,000 tpd.
  • Net of the remaining $82 million of stream financing payments to be received from Wheaton Precious Metals, the construction funding requirement is approximately $168 million.
  • The project remains on schedule, with first gold in H2 2026, followed by a production ramp-up period to steady-state operations
• Soto Norte Project (51% owned, Colombia):
  • Prefeasibility Study (PFS) completed in September 2025, demonstrating robust economics with, on a 100% basis, after-tax NPV_5% of $2.7 billion, IRR of 35%, and 2.3-year payback at $2,600/oz gold.
  • Strong leverage to higher gold prices, at $3,000/oz the NPV_5% increases to $3.3 billion with IRR of 40.0%.
  • The PFS highlights industry-leading environmental design features and integration of local community miners – 750 tpd (over 20% of 3,500 tpd capacity) has been dedicated to local contract mining partners.
  • Aris Mining is advancing the required studies to apply for an environmental license in H1 2026 for the development of Soto Norte.
• Toroparu Project (100% owned, Guyana):
  • Preliminary Economic Assessment (PEA) completed in October 2025, outlining another robust project with after-tax NPV_5% of $1.8 billion, IRR of 25.2%, and 3.0-year payback at $3,000/oz gold.
  • Aris Mining has initiated a PFS, targeted for completion in 2026, to advance Toroparu toward construction.
• Juby Gold Project Sale:
  • Closed in September 2025 for a total consideration of $22 million, streamlining our portfolio to focus on our core operations and projects in South America.

Endnotes

Q3 2025 Conference Call Details

Management will host a conference call on Thursday, October 30, 2025, at 9:00 a.m. New York / 6:00 a.m. Vancouver / 2:00 p.m. London / 3:00 p.m. Paris to discuss the results.

Participants may gain expedited access to the conference call by registering at Diamond Pass Registration. Once registered, call-in details will be displayed on screen which can be used to bypass the operator and avoid the call queue. Registration will remain open until the end of the live conference call.

Webcast

• Link: Webcast | Q3 2025 Conference Call

Conference Call

• Toll-free North America: +1-833-821-0197
• International: +1-647-846-2328

Audio Recording

• After the call, an audio recording will be available via telephone until end of day November 5, 2025
• Toll-free in the US and Canada: +1-855-669-9658
• International: +1-412-317-0088; and using the access code: 2585542

A replay of the event will be archived at Events & Presentations - Aris Mining Corporation.

Aris Mining's Condensed Consolidated Interim Financial Statements for the three and nine months ended September 30, 2025 and 2024 and related MD&A are available on SEDAR+, in the Company's filings with the U.S. Securities and Exchange Commission (the SEC) and in the Financials section of Aris Mining's website here. Hard copies of the financial statements are available free of charge upon written request to [email protected].

About Aris Mining

Founded in September 2022, Aris Mining was established with a vision to build a leading South America-focused gold mining company. Our strategy blends current production and cashflow generation with transformational growth driven by expansions of our operating assets, exploration and development projects. Aris Mining intends to unlock value through scale and diversification. The Company is listed on the TSX (ARIS) and the NYSE-A (ARMN) and is led by an experienced team with a track record of value creation, operational excellence, financial discipline and good corporate governance in the gold mining industry.

Aris Mining operates two underground gold mines in Colombia: the Segovia Operations and the Marmato Complex, which together produced 210,955 ounces of gold in 2024. With expansions underway, Aris Mining is targeting an annual production rate of more than 500,000 ounces of gold, following the commissioning of the second mill at Segovia, completed in June and ramping up during H2 2025, and the construction of the Bulk Mining Zone at the Marmato Complex, expected to start ramping up production in H2 2026. In addition, Aris Mining operates the 51% owned Soto Norte joint venture, where a PFS study is complete on a new, smaller scale development plan which confirms Soto Norte as a high-quality, long-life project with robust economics and industry-leading environmental and social design features. In Guyana, Aris Mining owns the Toroparu gold/copper project, where a new Preliminary Economic Assessment (PEA) is complete and a Prefeasibility Study is underway.

Colombia is rich in high-grade gold deposits and Aris Mining is actively pursuing partnerships with the Country's dynamic small-scale mining sector. With these partnerships, we enable safe, legal, and environmentally responsible operations that benefit both local communities and the industry.

Additional information on Aris Mining can be found at www.aris-mining.com, www.sedarplus.ca, and on www.sec.gov.

Cautionary Language

Non-GAAP Measures

EBITDA, adjusted EBITDA, adjusted earnings, cash cost, growth and expansion expenditures, cash flow after sustaining capital and income tax and AISC are non-GAAP financial measures. These financial measures do not have any standardized meaning prescribed under IFRS or by Generally Accepted Accounting Principles (GAAP) in the United States, and therefore may not be comparable to other issuers. For full details on these measures refer to the "Non-GAAP Financial Measures" sections of the Company's Management's Discussion and Analysis for the three and six months ended June 30, 2025 and 2024 and years ended December 31, 2024 and 2023 (MD&As). The MD&As are incorporated by reference into this news release and are available at www.aris-mining.com, on the Company's profile on SEDAR+ at www.sedarplus.ca and in its filings with the SEC at www.sec.gov.

The tables below reconcile the non-GAAP financial measures contained in this news release for the current and comparative periods to the most directly comparable financial measure disclosed in the Company's interim financial statements for the three and six months ended June 30, 2025 and 2024; the three months ended March 31, 2025 and 2024, and Company's annual financial statements for the three months and years ended December 31, 2024 and 2023.

Quarterly cash-flow summary¹

Segovia AISC Margin  

Cash costs per ounce

Reconciliation of total cash costs by business unit at Segovia and Marmato to the cash costs as disclosed above.

Cash costs per ounce – Business Units (Segovia)

All-in sustaining costs (AISC)

Reconciliation of total AISC by business unit at Segovia and Marmato to the AISC as disclosed above.

All-in sustaining costs (AISC) – Segovia by Business Unit

Additions to mineral interests, plant and equipment

Earnings before interest, taxes, depreciation, and amortization (EBITDA) and adjusted EBITDA

Earnings before interest, taxes, depreciation, and amortization (EBITDA) and adjusted EBITDA

Adjusted net earnings and adjusted net earnings per share

Adjusted net earnings and adjusted net earnings per share

Qualified Person and Technical Information

Pamela De Mark, P.Geo., Senior Vice President Geology and Exploration of Aris Mining, is a Qualified Person as defined by National Instrument 43-101 (NI 43-101), and has reviewed and approved the technical information contained in this news release.

Forward-Looking Information

This news release contains "forward-looking information" or forward-looking statements" within the meaning of Canadian securities legislation. All statements included herein, other than statements of historical fact, including, without limitation, statements relating to the Company's ability to deliver on its 2025 objectives, the expected benefit from the Segovia expansion, the completion timeline and expected benefit from the Marmato Bulk Mining Zone construction, the expected completion date of the new pre-feasibility study for the Soto Norte Project, the completion date of the new preliminary economic assessment for the Toroparu Project and statements included in the "About Aris Mining" section of this news release relating to the Segovia Operations, Marmato Complex, Soto Norte Project and Toroparu Project are forward-looking. Generally, the forward-looking information and forward looking statements can be identified by the use of forward looking terminology such as "plans", "expects" or "does not expect", "is expected", "budget", "scheduled", "estimates", "forecasts", "intends", "anticipates" or "does not anticipate", "will continue" or "believes", or variations of such words and phrases or state that certain actions, events or results "may", "could", "would", "might" or "will be taken", "occur" or "be achieved". The material factors or assumptions used to develop forward looking information or statements are disclosed throughout this news release.

Forward looking information and forward looking statements, while based on management's best estimates and assumptions, are subject to known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of Aris Mining to be materially different from those expressed or implied by such forward-looking information or forward looking statements, including but not limited to those factors discussed in the section entitled "Risk Factors" in Aris Mining's annual information form dated March 12, 2025 which is available on SEDAR+ at www.sedarplus.ca and included as part of the Company's Annual report on Form 40-F, filed with the SEC at www.sec.gov.

Although Aris Mining has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking information and forward-looking statements, there may be other factors that cause results not to be as anticipated, estimated or intended. There can be no assurance that such information or statements will prove to be accurate, as actual results and future events could differ materially from those anticipated in such information or statements. The Company has and continues to disclose in its Management's Discussion and Analysis and other publicly filed documents, changes to material factors or assumptions underlying the forward-looking information and forward-looking statements and to the validity of the information, in the period the changes occur. The forward-looking statements and forward-looking information are made as of the date hereof and Aris Mining disclaims any obligation to update any such factors or to publicly announce the result of any revisions to any of the forward-looking statements or forward-looking information contained herein to reflect future results. Accordingly, readers should not place undue reliance on forward-looking statements and information.

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SOURCE Aris Mining Corporation