Mr. Terry MacDonald reports

COPPER LAKE PROVIDES AN UPDATE ON GOLD POTENTIAL ON ITS MARSHALL LAKE COPPER-ZINC-SILVER MASSIVE SULPHIDE PROPERTY, NORTHWESTERN ONTARIO

Further to its news release on Oct. 9, 2025, Copper Lake Resources Ltd. has identified a number of additional compelling gold geochemical anomalies on its Marshall Lake copper-zinc-silver volcanogenic massive sulphide (VMS) property, located in Northwestern Ontario. The gold anomalies identified emerged from a continuing assessment of the precious-metal potential at Marshall Lake, undertaken to capitalize on the current high gold price. In some surveys, gold analyses were either not undertaken, were minimal in number or, if completed, were not followed up on. The objective of this study was to identify new areas prospective for gold, silver and base metal mineralization from the Marshall Lake database to assist in future exploration targeting.

The follow-up exploration work on these anomalies will be done in conjunction with the continuing exploration of the property, which is currently focusing on the high-grade copper-zinc-silver intersects in the Teck Hill-Gazooma and Gazooma North-RM leases on the western areas of the property (see news release dated Feb. 21, 2025).

Terry MacDonald, chief executive officer, commented: "The Marshall Lake property is a large property in a prolific mining area. The property has several zones where there have been some very good drill results over significant widths -- some of these dating back decades when the price of gold was $45 per ounce, including these gold anomalies and historic gold drill results that have not been followed up. While we will continue with exploration at the conductive centre on the Billiton deposit area, these other zones we are accessible year-round and give us the opportunity to apply the most current geophysics to these areas and to follow up on the premise that Marshall Lake could be a Noranda-style VMS camp with several deposits. We are eagerly looking forward to this next work program and to following up on the promising gold zones."

An examination of the property's geochemical database revealed two surveys that yielded positive results for gold; these include a lake sediment survey and a soil sampling survey as documented below.

Historic geochemical survey results

Lake sediment survey, Dungarvon Resources Ltd., 1981

A lake sediment survey was completed by Dungarvon Resources over the western portion of Marshall Lake on the property in the winter of 1981. The survey covered a large area located to the east of the Billiton deposit. The Billiton deposit hosts a historical resource of 2.2 million tonnes at 4.20 per cent zinc, 1.34 per cent copper and 2.05 ounces per ton silver.

Three significant areas with anomalous gold were defined by the survey. Grid A includes several small gold anomalies with values ranging from 10 to 65 parts per billion gold. Grid B contains the highest gold values and is the most extensive of the gold anomalies in terms of area. Anomalous gold values for Grid B range from 15 to 200 ppb Au. The Grid C anomaly contains gold values ranging from 10 to 70 ppb Au. Notably, this anomaly coincides with a prominent mercury anomaly, a common pathfinder element associated with gold mineralization.

Samples of lake-bottom sediment were collected with a cylindrical freefall sampler at intervals of 30 metres along north-south-oriented lines, spaced 328 metres apart over grids A, B and C. Samples comprised a combination of organic gels and non-organic matter, resembling clays in composition. Water depths ranged from 0.6 to 8.0 metres with a total of 421 samples of lake-bottom sediment collected during the survey.

Soil sampling survey, Dungarvon Resources, 1991

A soil sampling survey was completed by Dungarvon Resources in 1991 in the same area of the property as the lake sediment survey summarized above. A total of 1,131 soil samples were collected in efforts to define prospective target areas on land, peripheral to the large gold anomalies yielded by the lake sediment survey.

Several gold-in-soil anomalies were outlined by the survey, with the most prominent being Anomaly 1. Anomaly 1 contains several elevated gold-in-soil values in an area with dimensions of 300 metres by 800 metres and oriented in a north-south direction. Gold values within Anomaly 1 contain 17 sites with gold values ranging from greater than five to 100 ppb Au. In addition to gold, this anomaly contains high values for copper, lead, zinc and silver. The author of the report documenting these results stated that a local bedrock source for gold-in-soils was likely.

Soil samples were collected with a soil auger and were collected in either the A or B soil horizons.

In the case of both the lake sediment and soil sampling surveys, there was no follow-up performed on the anomalous areas containing significant gold values. A follow-up is clearly warranted given that the anomalies represent new areas on the property prospective for precious and base metal mineralization, most significant of which are the targets beneath the waters of Marshall Lake.

The content of this press release has been reviewed and approved by Donald Hoy, MSc, PGeo, the company's vice-president of exploration, who serves as the qualified person under the National Instrument 43-101 guidelines.

About Copper Lake Resources Ltd.

Copper Lake Resources is a publicly traded Canadian mineral exploration and development company with interests in two projects both located in Ontario.

The Marshall Lake high-grade VMS copper, zinc, silver and gold project, comprises an area of approximately 220 square kilometres located 120 kilometres north of Geraldton, Ont., and is just 22 kilometres north of the main Canadian National Railway rail line. Copper Lake has an 82.97-per-cent interest in the joint-ventured property, which consists of 233 claims and 52 mining leases. The project also includes 148 claim cells staked in 2018 and 2020 that are 100 per cent owned and not subject to any royalties. These newer claims add approximately 30 square kilometres to the property.

In addition to the original Marshall Lake property above, Marshall Lake also includes the Sollas Lake and Summit Lake properties, which are 100 per cent owned by the company and are not subject to any royalties. The Sollas Lake property consists of 20 claim cells comprising an area of four square kilometres on the eastern side of the Marshall Lake property, where historical electromagnetic airborne geophysical surveys have outlined strong conductors on the property hosted within the same favourable felsic volcanic units. The Summit Lake property currently consists of 100 claim cells comprising an area of 20.5 square kilometres, is accessible year-round and is located immediately west of the original Marshall Lake property. The Marshall Lake project is located in the traditional territories of Aroland and Animbiigoo Zaagi'igan Anishinaabek (AZA) first nations.

Copper Lake has a 69.79-per-cent joint venture interest in the Norton Lake nickel, copper, cobalt and palladium PGM (platinum group metal) property, located in the southern Ring of Fire area, is approximately 100 kilometres north of the Marshall Lake property. The company filed an updated NI 43-101 in October, 2023, with a mineral resource of open-pit and underground measured and indicated resources of 1,795,000 tonnes at an average grade of 0.72 per cent nickel, 0.69 per cent copper, 339 parts per million cobalt, 0.52 gram per tonne palladium and 0.17 gram per tonne platinum and containing 28.3 million pounds of nickel and 27.3 million pounds of copper. The Norton Lake property is located in the traditional territories of Eabametoong (Fort Hope) and Neskantaga first nations.