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CNL 6-K

Collective Mining Ltd. (CNL)

6-K 2026-04-13 For: 2026-04-13
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Added on April 13, 2026

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of April, 2026
Commission File Number: 001-42170

Collective Mining Ltd.

(Translation of registrant’s name into English)

82 Richmond Street East, 4th Floor

Toronto, Ontario

Canada, M5C 1P1

(Address of principal executive office)

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

Form 20-F ☐ Form 40-F ☒

EXHIBIT INDEX

EXHIBIT NO. DESCRIPTION
99.1 Notice of Meeting and Record Date dated April 13, 2026

1

SIGNATURES

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

Date: April 13, 2026 Collective Mining Ltd.
By: /s/ Paul Begin
Name: Paul Begin
Title: Chief Financial Officer and Corporate Secretary

2

Exhibit 99.1

TSX TRUST COMPANY

VIA ELECTRONIC TRANSMISSION

April 13, 2026

TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:

RE: COLLECTIVE MINING LTD.

Confirmation of Notice of Record and Meeting Dates

We are pleased to confirm that the Notice of Record and Meeting Dates was sent to The Canadian Depository for Securities.

We advise the following with respect to the upcoming Annual and Special Meeting of Security Holders for the subject issuer:

1 ISIN: CA19425C1005
CUSIP: 19425C100
2 Date Fixed for the Meeting: June 15, 2026
3 Record Date for Notice: May 8, 2026
4 Record Date for Voting: May 8, 2026
5 Beneficial Ownership Determination Date: May 8, 2026
6 Classes or Series of Securities that entitle the holder to receive Notice of the Meeting: COMMON SHARES
7 Classes or Series of Securities that entitle the holder to vote at the meeting: COMMON SHARES
8 Business to be conducted at the meeting: Annual and Special
9 Notice-and-Access:
Registered Shareholders: NO
Beneficial Holders: NO
Stratification Level: Not Applicable
10 Reporting issuer is sending proxy-related materials directly to Non-Objecting Beneficial Owners: YES
11 Issuer paying for delivery to Objecting Beneficial Owners: YES

Yours truly,

TSX Trust Company

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