Mr. Ken Lapierre reports

ROCKY SHORE IDENTIFIES THE MOSQUITO TARGET HORIZON AT THE GOLD ANCHOR PROJECT

Rocky Shore Gold Ltd. has commenced a first-phase drill program at a newly termed Mosquito target horizon immediately south of the company's Mosquito Hill gold deposit. The Mosquito Hill gold deposit is part of its 100-per-cent-owned Gold Anchor project in central Newfoundland.

Rocky Shore's president and chief executive officer, Ken Lapierre, commented: "The drill has now moved proximal to our Mosquito Hill gold deposit with a goal of testing the outer limits of the mineralization and, at the same time, we are collecting, analyzing and interpreting all drill data from the recently completed 25 holes at our Lane Pond gold target. The identification of the Mosquito target horizon is defined as a distinct geological and prominent resistivity setting on trend to historical higher-grade gold intersections within the deposit. The target horizon extends well beyond the current gold deposit and remains open along strike, fundamentally changing how we intend to explore Mosquito Hill. We are excited to see this model tested as we begin our next phase of drilling."

Mosquito Hill gold deposit and area highlights

Modern reinterpretation of historical geophysical data completed over the porphyry-hosted Mosquito Hill gold deposit.

Modern 3-D resistivity inversions indicate that approximately 63 per cent of the interpreted intrusive footprint lies outside the currently drilled deposit outline. Drilling will prioritize the newly identified Mosquito target horizon -- a high-gradient resistivity transition zone along the eastern margin where historical higher-grade gold values are concentrated -- as well as untested targets to the west and southwest.

The updated geological model establishes a new priority exploration target for the company's upcoming drill program. The Mosquito target horizon may represent an important geological control on gold mineralization, potentially reflecting structural pathways that focused mineralizing fluids, zones of hydrothermal alteration, contacts within the intrusive system or a combination of these geological processes.

The drill program has been designed to test these interpretations and determine the significance of this horizon within the broader Mosquito Hill mineral system.

Qualified person

The scientific and technical information in this press release has been prepared and approved by Ken Lapierre, PGeo, president and CEO of the company, and a qualified person in accordance with the Canadian regulatory requirements as set out in National Instrument 43-101. Mr. Lapierre consents to the publication of this press release dated Aug. 12, 2026, by Rocky Shore Gold.

About Rocky Shore Gold Ltd.

Rocky Shore Gold is a Canadian junior exploration company focused on its 100-per-cent-owned Gold Anchor project in central Newfoundland. It is strategically located within one of Canada's most promising and underexplored gold belts. The project is the second-largest property (greater than 1,200 square kilometres) in this emerging gold district. Rocky Shore is targeting the expansion of its structurally controlled, orogenic-hosted, surface bulk-tonnage Mosquito Hill and Reid gold deposits, associated with the Dog Bay Line Fault. It also hosts orogenic, structurally controlled gold targets including the Lucky 13 gold zone along the highly prospective Appleton Fault corridor located on trend and southwest of major gold discoveries and deposits.

Rocky Shore Gold would like to acknowledge the $150,000 in financial support received for 2025, and the approval of the 2026 Junior Exploration Assistance (JEA) administered by the mineral incentive program from the mineral development division, Department of Energy and Mines, government of Newfoundland and Labrador.

We seek Safe Harbor.