Exhibit 99.1

FORM 51-102F3 - MATERIAL CHANGE REPORT

Titan Mining Corporation (“Titan” or the “Company”)

Suite 555 – 999 Canada Place

Vancouver, BC V6C 3E1

June 18, 2026

News release dated June 18, 2026, was disseminated through the facilities of GlobeNewswire and filed on SEDAR+.

Titan announced the appointment of Richard Pozzebon as Chief Financial Officer, effective July 6, 2026.

Titan announced the appointment of Richard Pozzebon as Chief Financial Officer, effective July 6, 2026.

Mr. Pozzebon brings more than 23 years of finance and capital markets experience, including over 15 years in the resource sector with publicly listed companies in Canada and the United States. Most recently, he served as Executive Vice President and Chief Financial Officer of Interfor Corporation, one of North America’s largest lumber manufacturers. Prior to Interfor, Mr. Pozzebon held senior finance leadership positions with Hecla Mining Company and Western Coal Corp., where he supported operational growth, strategic initiatives, and capital allocation across multiple jurisdictions.

Mr. Pozzebon is a CFA charterholder, Chartered Professional Accountant, and a graduate of the University of British Columbia and the University of Western Ontario.

Not applicable.

Not applicable.

Tom Ladner, General Counsel, (604) 638-1470

June 25, 2026