ARIS MINING REPORTS Q2 2025 RESULTS

Higher Gold Sales, Record Adjusted EBITDA & Earnings, and Significant Growth in Cash

Aris Mining Corporation (Aris Mining or the Company) (TSX: ARIS) (NYSE-A:ARMN) announces its financial and operating results for the three and six months ended June 30, 2025 (Q2 2025 and H1 2025). In addition, the Company announces the publication of its 2024 Sustainability Report, which is available for review on our website. All amounts are in U.S. dollars unless otherwise indicated.

Q2 2025 Financial Performance

— Record revenue of $200.2 million, up 30% from Q1 2025 and 75% from Q2 2024, driven by higher gold prices and increased sales volumes.

— Cash balance increased to $310 million as of June 30, 2025, up from $240 million at March 31, 2025 as a result of strong cash flow generation from operations and proceeds from ARIS.WT.A warrant exercises. After June 30, 2025, the Company received an additional $60.5 million from the exercise of these warrants, which expired on July 29. In total, 98.7% of the warrants were exercised, generating $114.8 million in proceeds.

— Adjusted EBITDA1 of $98.7 million, up 48% from Q1 2025 and nearly triple Q2 2024. On a trailing 12-month basis, Adjusted EBITDA1 has reached $264.0 million.

— Growth capital investment of $36.7 million, supporting long-term expansion, primarily at the Marmato Bulk Mining Zone ($23.6 million) and Segovia ($6.9 million).

— Record adjusted net earnings of $47.8 million or $0.27/share – the highest since Aris Mining's formation in September 2022 – up from $0.16/share in Q1 2025 and $0.08/share in Q2 2024.

Neil Woodyer, CEO, commented “With record adjusted net earnings, over $310 million in cash, and the commissioning of the second mill at Segovia, we are well‑positioned for stronger production in the second half of 2025 while advancing construction of the Marmato Bulk Mining Zone and technical studies at Soto Norte and Toroparu, which underpin a compelling growth pipeline. The expiry of the ARIS.WT.A warrants on July 29 has simplified our capital structure and eliminated a source of non‑cash earnings volatility. We remain firmly on track to become a leading intermediate gold producer in Latin America with a highly attractive profile for investors.”

Q2 2025 Q1 2025 Q2 2024Gold production ounces (oz), total 58,652 54,763 49,216Gold sold (oz), total 61,024 54,281 49,469Segovia – AISC, Owner Mining ($/oz sold) $1,520 $1,482 $1,616Segovia – CMP AISC Margin 42% 41% 34%EBITDA $31.6M $39.7M $30.8MAdjusted EBITDA $98.7M $66.6M $36.1MAdjusted EBITDA, last 12 months $264.0M $201.3M $144.6MNet earnings (loss)2 $(16.9)M3 or $(0.09)/share $2.4M or $0.01/share $5.7 or $0.04/shareAdjusted earnings $47.8M or $0.27/share $27.2M or $0.16/share $12.7 or $0.08/shareAdjusted earnings, last 12 months $112.7M or $0.65/share $77.7M or $0.46/share $42.9M or $0.31/share

Q2 2025 Operational Performance

— Gold production totaled 58,652 oz, a 7% increase from 54,763 oz in Q1 2025. Production is expected to progressively increase in H2 2025 following the June 2025 commissioning of the second mill at Segovia.

— Marmato Narrow Vein Zone produced 7,125 oz, a 29% increase over Q2 2024 and consistent with Q1 2025 production levels.

— Segovia Operations produced 51,527 oz, supported by gold grades of 9.9 g/t and gold recoveries of 96.1%.

— AISC margin increased to $87.2 million, up 43% from Q1 2025. On a trailing 12-month basis, AISC margin has reached $250.4 million.

— Owner-operated MiningAISC was $1,520/oz (Q1 2025: $1,482/oz), bringing H1 2025 average to $1,503/oz, tracking toward the lower end of the full year 2025 guidance range of $1,450 to $1,600.

— Contract Mining Partner (CMP) sourced gold delivered an AISC sales margin of 42%, contributing to a 41% margin for H1 2025. This is above the full-year 2025 guidance range of 35% to 40%.

— TotalAISC increased to $1,681/oz (Q1 2025: $1,570), primarily due to higher gold prices, which increased costs related to material purchased from CMPs, together with royalties and social contributions tied to gold sales.

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https://mma.prnewswire.com/media/2746390/Aris_Mining_Corporation_ARIS_MINING_REPORTS_STRONG_Q2_2025_RESUL.jpg

Total Segovia Operating Information Q2 2025 Q1 2025 Q2 2024Average realized gold price ($/oz sold) $3,303 $2,855 $2,313Tonnes milled (t) 167,960 167,150 155,912Average tonnes milled per day (tpd) 1,976 1,966 1,834Average gold grade processed (g/t) 9.85 9.37 9.14Gold produced (oz) 51,527 47,549 43,705Gold sold (oz) 53,751 47,390 43,366AISC margin ($M) 87.2 60.9 32.2Segovia Operating Information by Segment Q2 2025 Q1 2025 Q2 2024Owner MiningGold sold (oz) 32,685 26,963 20,183Cash costs – ($/oz sold) $1,047 $1,123 1,222AISC -($/oz sold) $1,520 $1,482 1,616AISC margin ($M) 57.8 37.0 14.1CMPsGold sold (oz 21,066 20,427 23,183Cash costs – ($/oz sold) $1,622 $1,431 1,367AISC – ($/oz sold) $1,931 $1,687 1,532AISC sales margin (%) 42% 41% 34%AISC margin ($M) 29.4 23.9 18.1
* Aris Mining operates its own mines and contracts with community-based mining partners, referred to as Contract Mining Partners (CMPs), to increase total gold production. Some partners work within Aris Mining's infrastructure, while others manage their own mining operations on Aris Mining's titles using their own infrastructure. In addition, Aris Mining purchases high grade mill feed from third-party contractors operating off-title, which further optimizes production and increases operating margins.

Growth and Expansion Updates

— Strong cash generation funding growth:

— Operations generated $74.6 million in cash flow after sustaining capital and income taxes in Q2 2025, fully funding all growth and expansion initiatives. After expansion capital, Aris Mining generated $37.9 million in net cash flow. See the Quarterly cash-flow summary in the following sections for additional cash flow analysis.

— Segovia expansion progressing well:

— Commissioning of the second ball mill in June 2025 marked a major milestone. The expanded plant capacity is expected to steadily increase gold production throughout H2 2025.

— As underground development advances and mill feed from contract mining partners increases, Segovia remains on track to achieve annual production of 210,000 to 250,000 ounces this year and targeting 300,000 ounces next year.

— $6.9 million was invested in Q2 2025 to support the plant expansion, underground development, and exploration activities.

— Marmato Bulk Mining Zone construction advancing:

— The Bulk Mining Zone is a large, porphyry-hosted gold-silver system with wide, continuous mineralized zones that support bulk underground mining methods. Extensive drilling has defined a large mineral resource, and the deposit remains open at depth and along strike.

— Decline development to access the Bulk Mining Zone is underway.

— Earthworks for the main substation are completed and earthworks for the carbon-in-pulp (CIP) plant platforms are nearing completion.

— Equipment deliveries continued through the quarter, including major components such as crushers, mills, and tailings filters.

— $23.6 million was invested in Q2 2025.

— The project remains on schedule, with first ore and production ramp up expected in H2 2026.

— Soto Norte Project:

— A new Pre-Feasibility Study (PFS) is underway, with completion expected in Q3 2025. The PFS incorporates a smaller-scale development plan and includes processing options designed to support local small-scale miners.

— Upon completion of the PFS, Aris Mining intends to finalize and submit the required studies to apply for an environmental license for the development of Soto Norte.

— Toroparu Project:

— A new Preliminary Economic Assessment (PEA) is underway to evaluate updated development options. Following the March 2023 mineral resource update, Aris Mining completed infrastructure optimization studies that strengthen the development plan. The PEA is expected to be completed in Q3 2025.

Endnotes1 All references to adjusted earnings, EBITDA, adjusted EBITDA, growth capital investment, cash flow after sustaining capital and income taxes, cash costs and AISC are non-GAAP financial measures in this document. These measures are intended to provide additional information to investors. They do not have any standardized meanings under IFRS, and therefore may not be comparable to other issuers and should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS. Refer to the Non-GAAP Measures section in this document for a reconciliation of these measures to the most directly comparable financial measure disclosed in the Company's financial statements.2 Net earnings represents net earnings attributable to owners of the company, as presented in the annual and interim financial statements for the relevant period.3 A $45.5 million non-cash loss was recognized in Q2 2025 from fair value adjustments to the Company's warrant liability, valued at $40.8 million as of June 30, 2025. The fair value of the liability is directly correlated to the Company's share price, which increased by 38% during Q2 2025 (year-to-date: 82% increase). In July 2025, the Company received an additional $60.5 million in cash proceeds from exercises of these warrants. With these exercises and the July 29, 2025 expiry of the remaining outstanding warrants, the liability has been fully extinguished, removing a source of non-cash earnings volatility from future results.

Q2 2025 Conference Call Details

Management will host a conference call on Friday, August 8, 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 atDiamond Pass Registration (dpregister.com). 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 | Q2 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 August 15, 2025

— Toll-free in the US and Canada: +1-855-669-9658

— International: +1-412-317-0088; and using the access code: 8035390

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 six months ended June 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 info@aris-mining.com.

About Aris Mining

Founded in September 2022, Aris Mining was established with a vision to build a leading Latin 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 secondmill 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 studies are underway on a new, smaller scale development plan, with results expected in Q3 2025. In Guyana, Aris Mining owns the Toroparu gold/copper project, where a new Preliminary Economic Assessment (PEA) is underway and its results are also expected in Q3 2025.

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

($000's) Q2 2025 Q1 2025Gold revenue2 $200,231 $154,142Total cash cost (83,166) (72,730)Royalties2 (7,583) (6,359)Social contributions2 (5,562) (4,334)Sustaining capital (12,710) (7,069)All in sustaining cost (AISC) (109,021) (90,492)AISC margin 91,210 63,650Taxes paid2 (42,244) (5,121)General and administration expense2 (5,187) (4,106)Decrease (increase) in VAT receivable 30,813 (11,761)Other changes in working capital (877) (11,685)Impact of foreign exchange losses on cash balances2 925 768After-tax adjusted sustaining margin 74,640 31,745Expansion and growth capital expenditureSegovia Operations (6,930) (6,368)Marmato Bulk Mining Zone (23,628) (29,661)Toroparu Project (2,741) (2,411)Soto Norte Project & other (3,446) (4,570)Total expansion and growth capital (36,745) (43,010)Financing and other costsProceeds from warrant and option exercises 2 57,670 5,197Principal repayment of Gold Notes 2 (4,063) (3,941)Capitalized interest paid2 (5,802) (5,031)Interest (paid)2 (18,000) -Finance income2 2,633 2,336Total financing and other costs 32,438 (1,439)Net change in cash2 70,333 (12,704)Opening cash balance at beginning of period2 239,831 252,535Closing cash balance at end of period2 $310,164 $239,831
1. This Quarterly Cash Flow Summary is comprised of certain non-GAAP financial measures. Refer to the Non-GAAP Financial Measures section of this news release for further information.2. As presented in the Financial Statements and notes for the respective periods.

Segovia AISC Margin

($000s except per ounce, and ounce amounts) Q2 2025 Q1 2025 Q4 2024 Q3 2024 Q2 2024Gold produced (ounces) 51,527 47,549 51,477 47,493 43,705Gold sold (ounces) 53,751 47,390 50,409 48,059 43,366Financial InformationGold revenue ($'000s) 177,551 135,310 133,159 118,075 100,302Average realized gold price ($/ounce sold) $3,303 $2,855 $2,642 $2,457 $2,313Owner Mining costs 23,228 19,291 18,845 15,780 17,187CMP material purchases 29,157 26,656 29,461 31,373 28,667Processing costs 7,412 7,430 6,879 6,985 6,536Administration and security costs 10,422 10,124 11,656 7,796 8,120Change in finished goods and stockpile inventory 961 (929) (4,070) 1,130 (1,306)By-product and concentrate revenue (2,798) (3,073) (2,308) (2,665) (2,862)Total cash costs 68,382 59,499 60,463 60,399 56,342Cash cost per ounce sold $1,272 $1,256 $1,199 $1,257 $1,299 ,43 3,506Royalties 5,539 4,519 4,342 3,506 3,078Social contributions 5,177 4,061 4,063 4,294 2,120Sustaining capital 10,861 5,856 5,426 5,423 6,224Sustaining lease payments 423 480 567 389 364All-in sustaining costs 90,382 74,415 74,861 74,011 68,128All-in sustaining cost per ounce sold (Combined) $1,681 $1,570 $1,485 $1,540 $1,571AISC Margin 87,169 60,895 58,298 44,064 32,174

Cash costs per ounce

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

Three months ended June 30, 2025 Three months ended March 31, 2025($000s except per ounce amounts) Segovia Marmato Total Segovia Marmato TotalTotal gold sold (ounces) 53,751 7,273 61,024 47,390 6,891 54,281Cost of sales1 76,719 17,255 93,974 67,091 15,384 82,475Less: royalties1 (5,539) (2,044) (7,583) (4,519) (1,840) (6,359)Add: by-product revenue1 (2,798) (427) (3,225) (3,073) (313) (3,386)Total cash costs 68,382 14,784 83,166 59,499 13,231 72,730Total cash costs ($ per oz gold sold) $1,272 $1,256Total cash costs including royalties 73,921 64,018Total cash costs including royalties ($ per oz gold sold) $1,375 $1,351 Three months ended June 30, 2024($000s except per ounce amounts) Segovia Marmato TotalTotal gold sold (ounces) 43,366 6,103 49,469Cost of sales1 62,282 14,712 76,994Less: royalties1 (3,078) (1,126) (4,204)Add: by-product revenue1 (2,862) (153) (3,015)Total cash costs 56,342 13,433 69,775Total cash costs ($ per oz gold sold) $1,299Total cash costs including royalties 59,420Total cash costs including royalties ($ per oz gold sold) $1,3701 As presented in the Annual and Interim Financial Statements and notes thereto for the respective periods.

Cash costs per ounce – Business Units (Segovia)

Three months ended June 30, 2025 Three months ended March 31, 2025($000s except per ounce amounts) Owner CMPs Total Owner CMPs TotalTotal gold sold (ounces) 32,685 21,066 53,751 26,963 20,427 47,390Cost of sales1 39,532 37,187 76,719 34,799 32,292 67,091Less: royalties1 (3,605) (1,934) (5,539) (2,783) (1,736) (4,519)Add: by-product revenue1 (1,714) (1,084) (2,798) (1,748) (1,325) (3,073)Total cash costs 34,213 34,169 68,382 30,268 29,231 59,499Total cash costs ($ per oz gold sold) $1,047 $1,622 $1,272 $1,123 $1,431 $1,256 Three months ended June 30, 2024($000s except per ounce amounts) Owner CMPs TotalTotal gold sold (ounces) 20,183 23,183 43,366Cost of sales1 28,531 33,751 62,282Less: royalties1 (1,720) (1,358) (3,078)Add: by-product revenue1 (2,151) (711) (2,862)Total cash costs 24,660 31,682 56,342Total cash costs ($ per oz gold sold) $1,222 $1,367 $1,2991 As presented in the Annual and Interim Financial Statements and notes thereto for the respective periods.

All-in sustaining costs (AISC)

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

Three months ended June 30, 2025 Three months ended Mar 31, 2025($000s except per ounce amounts) Segovia Marmato Total Segovia Marmato TotalTotal gold sold (ounces) 53,751 7,273 61,024 47,390 6,891 54,281Total cash costs 68,382 14,784 83,166 59,499 13,231 72,730Add: royalties1 5,539 2,044 7,583 4,519 1,840 6,359Add: social programs1 5,177 385 5,562 4,061 273 4,334Add: sustaining capital expenditures 10,861 1,426 12,287 5,856 733 6,589Add: lease payments on sustaining capital 423 – 423 480 – 480Total AISC 90,382 18,639 109,021 74,415 16,077 90,492Total AISC ($ per oz gold sold) $1,681 $1,570 Three months ended June 30, 2024($000s except per ounce amounts) Segovia Marmato TotalTotal gold sold (ounces) 43,366 6,103 49,469Total cash costs 56,342 13,433 69,775Add: royalties1 3,078 1,126 4,204Add: social programs1 2,120 151 2,271Add: sustaining capital expenditures 6,224 782 7,006Add: lease payments on sustaining capital 364 – 364Total AISC 68,128 15,492 83,620Total AISC ($ per oz gold sold) $1,5711 As presented in the Annual and Interim Financial Statements and notes thereto for the respective periods.

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

Three months ended Jun 30, 2025 Three months ended Mar 31, 2025($000s except per ounce amounts) Owner CMPs Total Owner CMPs TotalTotal gold sold (ounces) 32,685 21,066 53,751 26,963 20,427 47,390Total cash costs 34,213 34,169 68,382 30,268 29,231 59,499Add: royalties1 3,605 1,934 5,539 2,783 1,736 4,519Add: social programs1 3,366 1,811 5,177 2,501 1,560 4,061Add: sustaining capital expenditures 8,088 2,773 10,861 3,917 1,939 5,856Add: lease payments on sustaining capital 423 – 423 480 – 480Total AISC 49,695 40,687 90,382 39,949 34,466 74,415Total AISC ($ per oz gold sold) $1,520 $1,931 $1,681 $1,482 $1,687 $1,570 Three months ended Dec 31, 2024 Three months ended Sep 30, 2024($000s except per ounce amounts) Owner CMPs Owner Owner CMPs TotalTotal gold sold (ounces) 28,149 22,260 50,409 22,952 25,107 48,059Total cash costs 29,320 31,143 60,463 24,820 35,579 60,399Add: royalties1 2,754 1,588 4,342 1,999 1,507 3,506Add: social programs1 2,558 1,505 4,063 2,449 1,845 4,294Add: sustaining capital expenditures 3,819 1,607 5,426 3,640 1,783 5,423Add: lease payments on sustaining capital 567 – 567 389 – 389Total AISC 39,018 35,843 74,861 33,297 40,714 74,011Total AISC ($ per oz gold sold) $1,386 $1,610 $1,485 $1,451 $1,622 $1,540 Three months ended Jun 30, 2024($000s except per ounce amounts) Owner CMPs TotalTotal gold sold (ounces) 20,183 23,183 43,366Total cash costs 24,660 31,682 56,342Add: royalties1 1,720 1,358 3,078Add: social programs1 1,185 935 2,120Add: sustaining capital expenditures 4,677 1,547 6,224Add: lease payments on sustaining capital 364 – 364Total AISC 32,606 35,522 68,128Total AISC ($ per oz gold sold) $1,616 $1,532 $1,5711 As presented in the Annual and Interim Financial Statements and notes thereto for the respective periods.

Additions to mineral interests, plant and equipment

($'000) Jun 30, 2025 Mar 31, 2025 Jun 30, 2024Sustaining capitalSegovia Operations 10,861 5,856 6,224Marmato Narrow Vein Zone 1,426 733 782Total Sustaining Capital 12,287 6,589 7,006Non-sustaining capitalMarmato Bulk Mining Zone 23,628 29,661 19,143Segovia Operations 6,930 6,368 16,284Soto Norte Project and Other 3,446 4,570 3,896Marmato Narrow Vein Zone – – 1,046Toroparu Project 2,741 2,411 2,079Total (Growth Capital Investment) 36,745 43,010 42,448Additions to mining interest, plant and equipment1 49,032 49,599 49,4541 As presented in the Annual and Interim Financial Statements and notes for the respective periods.

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

($000s) Jun 30, 2025 Mar 31, 2025 Dec 31, 2024 Sept 30, 2024Earnings (loss) before tax1 12,258 21,220 37,513 13,603Add back:Depreciation and depletion1 11,929 10,734 9,530 9,019Finance income1 (2,633) (2,336) (1,606) (1,351)Interest and accretion1 9,992 10,037 21,165 6,493EBITDA 31,546 39,655 66,602 27,764Add back:Share-based compensation1 8,136 3,784 (483) 2,533(Income) loss from equity accounting in investee1 – 14 14 17(Gain) loss on financial instruments1 50,737 16,628 (6,561) 12,842Other (income) expense1 1,090 535 1,116 (428)Foreign exchange (gain) loss1 7,224 5,997 (5,113) 311Adjusted EBITDA 98,733 66,613 55,575 43,0391 As presented in the Annual and Interim Financial Statements and notes for the respective periods.

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

($000s) June 30, 2024 Mar 31, 2024 Dec 31, 2023 Sept 30, 2023Earnings (loss) before tax1 17,904 10,310 7,963 26,156Add back:Depreciation and depletion1 8,082 7,519 7,535 10,938Finance income1 (1,691) (2,246) (2,580) (3,672)Interest and accretion1 6,496 6,803 6,772 6,757EBITDA 30,791 22,386 19,690 40,179Add back:Share-based compensation1 1,373 1,842 2,977 528Revaluation of investments (Denarius/Aris) – – 536 -(Income) loss from equity accounting in investee1 2,301 551 (3,667) (1,063)(Gain) loss on financial instruments1 6,144 3,742 13,429 (374)Other (income) expense1 2,681 – (1,442) 21Foreign exchange (gain) loss1 (7,211) (108) 6,685 2,285Adjusted EBITDA 36,079 28,413 38,208 41,5761 As presented in the Annual and Interim Financial Statements and notes for the respective periods.

Adjusted net earnings and adjusted net earnings per share

($000s except shares amount) Jun 30, 2025 Mar 31, 2025 Dec 31, 2024 Sept 30, 2024Basic weighted average shares outstanding 179,836,208 171,622,649 170,900,890 169,873,924Net earnings (loss)1 (16,897) 2,368 21,687 (2,074)Add back:Share-based compensation1 8,136 3,784 (483) 2,533(Income) loss from equity accounting in investee1 – 14 14 17(Gain) loss on financial instruments1 50,737 16,628 (6,561) 12,842Other (income) expense1 1,090 535 1,116 (428)Loss on extinguishment of Senior Notes – – 11,463 -Foreign exchange (gain) loss1 7,224 5,997 (5,113) 311Income tax effect on adjustments (2,528) (2,099) 2,536 (109)Adjusted net (loss) / earnings 47,762 27,227 24,659 13,092Per share – basic ($/share) 0.27 0.16 0.14 0.081 As presented in the Annual and Interim Financial Statements and notes for the respective periods.

Adjusted net earnings and adjusted net earnings per share

($000s except shares amount) June 30, 2024 Mar 31, 2024 Dec 31, 2023 Sept 30, 2023Basic weighted average shares outstanding 151,474,859 138,381,653 137,313,095 137,192,545Net earnings (loss)1 5,713 (744) (5,944) 13,833Add back:Share-based compensation1 1,373 1,842 2,977 528Revaluation of investments (Denarius/Aris) – – 536 -(Income) loss from equity accounting in investee1 2,301 551 (3,667) (1,063)(Gain) loss on financial instruments1 6,144 3,742 13,429 (374)Other (income) expense1 2,681 – (1,442) 21Loss on extinguishment of Senior Notes – – – -Foreign exchange (gain) loss1 (7,211) (108) 6,685 2,285Income tax effect on adjustments 1,738 78 (2,221) (796)Adjusted net (loss) / earnings 12,739 5,361 10,353 14,434Per share – basic ($/share) 0.08 0.04 0.08 0.111 As presented in the Annual and Interim Financial Statements and notes for the respective periods.

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

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