Mr. Trumbull Fisher reports

ANTEROS METALS INITIATES CHANNEL SAMPLING AT HAVENS STEADY FOLLOWING GRANT CONFIRMATION AND EXPLORATION PERMIT APPROVAL

Anteros Metals Inc. has commenced a trenching and channel sampling program at its wholly owned, road-accessible Havens Steady volcanogenic massive sulphide property in central Newfoundland. This milestone follows confirmation of a junior exploration assistance grant and receipt of a provincial permit authorizing 10 mechanical trenches and four ground-supported drill holes.

Work is under way at the main mineralized zone, where recent grab sampling confirmed high-grade lead-zinc-silver mineralization. Channel sampling of existing outcrop exposure will generate inaugural grade over width data for the MMZ zone and will be followed by mechanized trenching to expose bedrock across key areas of the MMZ in addition to the highly prospective northeastern extension area. The channel and trenching program will result in high-confidence targets slated to be drilled in 2025.

"The start of trenching and channel sampling at the MMZ marks an important step in systematically advancing Havens Steady," said Trumbull Fisher, chief executive officer of Anteros Metals. "With strong provincial support through the JEA program and multiple high-grade surface discoveries already in hand, we're eager to define drill-ready targets and unlock the full potential of this underexplored VMS system."

Building on a series of high-grade discoveries

Recent prospecting has validated the property's critical mineral potential at multiple surface locations, including the MMZ and a newly identified northeastern extension target. Results include a grab sample of 9.60 per cent zinc, 1.56 per cent lead, 45.0 grams per tonne silver and 0.57 g/t gold from the MMZ (see the July 3, 2025, news release), and 2.17 per cent Cu, 21.3 g/t Ag and 0.22 g/t Au from angular float located along strike to the northeast of the MMZ in an undrilled area coincident with historical geophysical and soil anomalies (see June 16, 2025, news release).

Strategic government support

Anteros's letter of intent was approved under the JEA 2025 program as a critical mineral primary exploration target, recognizing the property's alignment with provincial and federal priorities to secure domestic supplies of key metals. With up to $95,966 in non-dilutive funding already approved, this support significantly offsets early-stage costs while advancing shareholder value.

Next steps

Targeted trenching and channel sampling will continue at the property into August. Pending results, the company anticipates a phase 1 drill program in third quarter 2025 to test continuity and grade of the MMZ at shallow depths and along strike.

About the property

Located approximately 40 kilometres southeast of Buchans, the Havens Steady property hosts a laterally extensive polymetallic volcanogenic massive sulphide system within the Storm Brook formation of the Red Cross group in the Exploits subzone of the Dunnage zone, a prolific metallogenic belt in central Newfoundland. The property benefits from existing road infrastructure and proximity to hydroelectric power. The region hosts active exploration and world-class volcanogenic massive sulphide deposits, including the past-producing Duck Pond mine. The company cautions that mineralization hosted on adjacent and/or nearby properties is not necessarily indicative of mineralization on the property.

Since acquiring the property in January, 2024, Anteros has compiled an extensive historical data set that includes airborne electromagnetic surveys, geochemical surveys and over 15,000 metres of historical drilling. Documented mineralization includes sphalerite, galena, chalcopyrite and bornite in high-grade polymetallic zones. The known system has a strike length of over a kilometre and remains open at depth.

Qualified person

The technical content of this news release has been reviewed and approved by Jesse R. Halle, PGeo, an independent qualified person as defined by National Instrument 43-101 (Standards of Disclosure for Mineral Projects).

About Anteros Metals Inc.

Anteros is a multimineral junior mining company applying data science and geological expertise to identify and advance critical mineral opportunities in Newfoundland and Labrador. The company is currently focused on advancing four key projects across diverse commodities and development horizons. Immediate plans for its flagship Knob Lake property include bringing the historical iron-manganese mineral resource estimate into current status, as well as commencing baseline environmental and feasibility studies.

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