UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549  

Form 6-K

REPORT OF FOREIGN PRIVATEISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGEACT OF 1934

Forthe month of October, 2025

Commission File Number:001-42170 

Collective Mining Ltd.

(Translation of registrant’sname into English)

82 Richmond Street East, 4th Floor

Toronto, Ontario

Canada, M5C 1P1

(Address of principal executiveoffice)

Indicate by check mark whether the registrant files or willfile annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☐ Form40-F ☒

SIGNATURES

Pursuant to the requirementsof the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereuntoduly authorized.

Exhibit99.1

Collective Mining AnnouncesClosing of Concurrent Financings for Gross Proceeds of C$140 Million

/THIS NEWS RELEASE IS INTENDEDFOR DISTRIBUTION IN CANADA ONLY AND IS NOT FOR DISTRIBUTION TO UNITED STATES NEWSWIRE SERVICES OR DISSEMINATION IN THE UNITED STATES/

TORONTO, Oct. 8, 2025 /CNW/ - Collective MiningLtd. (NYSE: CNL) (TSX: CNL) ("Collective" or the "Company") is pleased to announce the closingof its upsized "bought deal" public offering of 6,600,000 common shares of the Company (the "Shares") at a price ofC$19.00 per Share (the "Issue Price") for aggregate gross proceeds of C$125,400,000 (the "Public Offering"). The PublicOffering was conducted by a syndicate of underwriters led by BMO Capital Markets and Scotia Capital, as joint bookrunners, and includingClarus Securities Inc., Canaccord Genuity Corp., Roth Canada, Inc., Jett Capital Advisors, LLC, and Ventum Financial Corp. (collectively,the "Underwriters"), pursuant to the terms of an underwriting agreement entered into between the Company and the Underwriterson October 3, 2025.

Concurrently with the closing of the Public Offering,the Company completed a non-brokered private placement with Agnico Eagle Mines Limited ("Agnico"), whereby Agnico purchased789,473 Shares at the Issue Price for gross proceeds of approximately C$15 million, pursuant to the exercise of its participation rightsin equity financings of the Company (the "Concurrent Private Placement"). No commission or other fee was paid to the Underwritersin connection with the sale of Shares pursuant to the Concurrent Private Placement.

The Company intends to use the net proceeds from thePublic Offering and the Concurrent Private Placement to fund ongoing work programs to advance the Guayabales Project, including furtherinvestment in exploration activities, technical studies and underground development on the Guayabales Project in order to expand the knowngold deposits, to pursue other exploration and development opportunities, and for working capital and general corporate purposes, allas more particularly described in the prospectus supplement (the "Prospectus Supplement") of the Company dated October 3, 2025,and filed in each of the provinces and territories of Canada, other than Quebec and Nunavut.

The Shares issued pursuant to the Public Offeringin Canada were qualified for distribution pursuant to the Prospectus Supplement and a short form base shelf prospectus (the "BaseShelf Prospectus") dated December 4, 2023. The Prospectus Supplement, Base Shelf Prospectus, and the documents incorporated by referencetherein, are available on the Company's issuer profile on SEDAR+ at www.sedarplus.ca. The Shares issued pursuant to the Concurrent PrivatePlacement will remain subject to a four-month hold period in Canada.

The Public Offering and the Concurrent Private Placementremain subject to final approval of the Toronto Stock Exchange (the "TSX") and the NYSE American LLC.

The Concurrent Private Placement constituted a "relatedparty transaction" under Multilateral Instrument 61-101 – Protection of Minority Security Holders in Special Transactions("MI 61- 101"). Pursuant to section 5.5(a) and 5.7(1)(a) of MI 61-101, the Company was exempt from obtaining a formal valuationand minority approval of the Company's shareholders as the fair market value of Agnico's participation in the Concurrent Private Placementis below 25% of the Company's market capitalization as determined in accordance with MI 61-101. The Company did not file a material changereport including details with respect to the related party transaction less than 21 days prior to the closing of the Concurrent PrivatePlacement, which the Company deemed reasonable in the circumstances so as to be able to avail itself of financing opportunities and completethe Concurrent Private Placement (and the Public Offering) in an expeditious manner.

The securities offered have not been, and willnot be, registered under the United States Securities Act of 1933, as amended (the "U.S. Securities Act"), or any U.S. statesecurities laws, and may not be offered or sold to, or for the account or benefit of, persons in the "United States" (as suchterm is defined in Regulation S under the U.S. Securities Act) absent registration under the U.S. Securities Act and all applicable U.S.state securities laws, or in compliance with an exemption therefrom.

This news release shall not constitute an offerto sell or the solicitation of an offer to buy nor shall there be any sale of the securities in any jurisdiction in which such offer,solicitation or sale would be unlawful.

About Collective Mining Ltd.

To see our latest corporate presentation and relatedinformation, please visit www.collectivemining.com

Founded by the team that developed and sold ContinentalGold Inc. to Zijin Mining for approximately $2 billion in enterprise value, Collective is a gold, silver, copper and tungsten explorationcompany with projects in Caldas, Colombia. The Company has options to acquire 100% interest in two projects located directly within anestablished mining camp with ten fully permitted and operating mines.

The Company's flagship project, Guayabales, is anchoredby the Apollo system, which hosts the large-scale, bulk-tonnage and high-grade gold-silver-copper-tungsten Apollo system. The Company'sobjectives at the Guayabales Project are to expand the newly discovered high-grade Ramp Zone along strike and to depth and drill a seriesof greenfield generated targets on the property. 

Additionally, the Company has launched its largestdrilling campaign at the San Antonio Project as it hunts for new discoveries and looks to expand upon the newly discovered porphyry systemat the Pound target. The San Antonio Project is located between two to five kilometers east-northeast of the Guayabales Project and couldpotentially share infrastructure given their close proximity to each other.

Officers, directors, family and friends own approximately31% of the outstanding shares of the Company and as a result, are fully aligned with shareholders. The Company is listed on both the NYSEAmerican and TSX under the trading symbol "CNL".

Information Contact:

Follow Executive Chairman Ari Sussman (@Ariski73)on X

Follow Collective Mining (@CollectiveMini1) onX, (Collective Mining) on LinkedIn,
and (@collectivemining) on Instagram

FORWARD-LOOKING STATEMENTS

This news release contains "forward-lookingstatements" and "forward-looking information" within the meaning of applicable securities legislation (collectively, "forward-lookingstatements"). All statements, other than statements of historical fact, are forward-looking statements and are based on expectations,estimates and projections as at the date of this news release. Any statement that involves discussion with respect to predictions, expectations,beliefs, plans, projections, objectives, assumptions, future events or performance (often, but not always using phrases such as "plans","expects", "is expected", "budget", "scheduled", "estimates", "forecasts","intends", "anticipates", or "believes" or variations (including negative variations) of such words andphrases, or state 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. In thisnews release, forward-looking statements relate, among other things, to: the anticipated use of the net proceeds from the Public Offeringand the Concurrent Private Placement; receipt of all final regulatory approvals in connection with the Public Offering and the ConcurrentPrivate Placement; the anticipated advancement of mineral properties or programs; future operations; future recovery metal recoveryrates; future growth potential of Collective; and future exploration and development plans.

These forward-looking statements, and any assumptionsupon which they are based, are made in good faith and reflect our current judgment regarding future events including the direction ofour business. Management believes that these assumptions are reasonable. Forward-looking statements involve known and unknown risks, uncertaintiesand other factors which may cause the actual results, performance or achievements of the Company to be materially different from any futureresults, performance or achievements expressed or implied by the forward-looking statements. Such factors include, among others: risksrelated to the speculative nature of the Company's business; the Company's formative stage of development; the Company's financial position;possible variations in mineralization, grade or recovery rates; actual results of current exploration activities; conclusions of futureeconomic evaluations; fluctuations in general macroeconomic conditions; fluctuations in securities markets; fluctuations in spot and forwardprices of gold, precious and base metals or certain other commodities; fluctuations in currency markets; change in national and localgovernment, legislation, taxation, controls regulations and political or economic developments; risks and hazards associated with thebusiness of mineral exploration, development and mining (including environmental hazards, industrial accidents, unusual or unexpectedformation pressures, cave-ins and flooding); inability to obtain adequate insurance to cover risks and hazards; the presence of laws andregulations that may impose restrictions on mining; employee relations; relationships with and claims by local communities and indigenouspopulations; availability of increasing costs associated with mining inputs and labour; the speculative nature of mineral explorationand development (including the risks of obtaining necessary licenses, permits and approvals from government authorities); and title toproperties, as well as those risk factors discussed or referred to in the annual information form of the Company dated March 24, 2025.Forward-looking statements contained herein are made as of the date of this news release and the Company disclaims any obligation to updateany forward-looking statements, whether as a result of new information, future events or results, except as may be required by applicablesecurities laws. There can be no assurance that forward-looking statements will prove to be accurate, as actual results and future eventscould differ materially from those anticipated in such statements and there may be other factors that cause results not to be anticipated,estimated or intended. Accordingly, readers should not place undue reliance on forward-looking statements.

SOURCE Collective Mining Ltd.

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%CIK: 0001953575

For further information: Investors and Media: Paul Begin, Chief FinancialOfficer, p.begin@collectivemining.com, +1 (416) 451-2727

CO: Collective Mining Ltd.

CNW 08:54e 08-OCT-25