Delayed at least 15 minutes, or the latest close · Oct 27 close; copper fund Oct 28 close

McEwen Inc.

Operations · Flin Flon, Manitoba

Tartan

Tartan is a gold mine 12 km from Flin Flon, Manitoba, first mined in 1987

308,900 oz
Indicated at 3.67 g/t
302,700 oz
Inferred at 3.32 g/t
US$6 million
Exploration in 2026
12 km
Northeast of Flin Flon

release, Mar 23, 2026; McEwen’s Tartan page.

Gold and silverCopper

Tartan, Flin Flon, Manitoba, in McEwen’s 3D map

Flin Flon, Manitoba

Tartan holds 308,900 ounces Indicated and 302,700 ounces Inferred

Tartan has the potential to produce 40,000-65,000 GEO a year over a 7-10 year life based on the Mineral Resource Estimate. McEwen filed its NI 43-101 technical report on May 4, 2026.

release, Mar 23, 2026; Q2 2026 results, Aug 5, 2026. Forward-looking; see the cautionary statement.

McEwen is spending US$6 million exploring it in 2026

Mining began in 1987 with a 250 tpd mill, later expanded to 500 tpd.

McEwen’s Tartan page; Tartan technical report, 2026.

Resources

Tartan gold, 100% (Mar 23, 2026, at US$3,000 gold)
CategoryTonnesGradeContained
Indicated2,619 kt3.67 g/t308,900 oz
Inferred2,833 kt3.32 g/t302,700 oz

release, Mar 23, 2026

Qualified persons: Channa Kumarage, P.Eng., Vice President, Operations (technical contents, including reserves) and Luke Willis, P.Geo., Director of Resource Modelling (resources), both Qualified Persons as defined by SEC S-K 1300 and NI 43-101 (presentation, Sept 2026, slide 2). Resources are exclusive of reserves. See the cautionary statement.