Mr. David Ryan reports

GLENSTAR HIRES ALLOY DRILLING FOR PHASE 2 DRILL PROGRAM AT GREEN MONSTER PROJECT

Further to Glenstar Minerals Inc.'s news release of Nov. 24 regarding the granting of a permit by the Bureau of Land Management (the BLM) to conduct the phase 2 drill program at its Green Monster project in southwestern Nevada, Glenstar has hired Alloy Drilling of Elko, Nev., to conduct the drill program.

Alloy will utilize a track mounted reverse circulation drill to execute the company's plan to drill nine holes over four locations on the property, which will comprise approximately 300 metres of strike length exploration. As currently planned, Glenstar will collar two holes in the area of the primary drilling undertaken in the phase 1 drill program; three holes will focus on the area that is considered the discovery zone 150 metres to the west of the primary phase 1 drill site, and two holes each at two sites will be situated farther west along what is believed to be the mineralized east-west-trending belt (see news release dated Nov. 24, 2025).

Determination of each drill hole location in phase 2 will be finalized in consultation with Hasbrouck Geophysics Inc. upon the provision of their report relating to the hybrid-source audio-magnetotellurics survey (the HSAMT or survey) that was conducted in mid November. The survey data was acquired at intervals of 50 metres along 13 lines over the greater target zone and the final report will detail the methodology, data acquisition, processing, modelling and interpretation of the data (see news release dated Oct. 29, 2025). The HSAMT is an electromagnetic geophysical method that combines naturally occurring electromagnetic field measurements with signals from a portable, controlled-source transmitter. This information will significantly aid in determining exact drill hole location, angle and depth in order to maximize the potential for discovering additional high-grade mineralization.

Glenstar chief executive officer Dave Ryan stated: "The company is very much looking forward to getting the results of the HSAMT survey, which will be incorporated into our process of determining the final drill location plan. Alloy Drilling will mobilize their equipment to the property in mid-December, and the program is expected to be completed before the Christmas holiday."

The company also announces that it has extended the engagement with Altura Media Co. Inc. (see news release dated Aug. 13, 2025) for an additional $250,000. The company has agreed to continue the engagement of Altura Media of Vancouver, B.C., to provide certain marketing and investor awareness services in accordance with the policies of the Canadian Securities Exchange and applicable legislation. Under the terms of the continuation of the agreement, announced July 14, 2025, Altura will continue to deliver strategic advertising, public relations and investor communications services for the company. These services will be focused on enhancing Glenstar's visibility and engagement within domestic and foreign markets and include a full suite of services including digital advertising, content creation and shareholder communications support. The agreement includes provisions for fee adjustments, early termination and extensions of the engagement, should it be determined to be in the best interests of the company. Altura (including its directors and officers) is an arm's-length party to Glenstar, and to the best of the company's knowledge, neither Altura nor any related parties hold or have the right to acquire securities of Glenstar Minerals, and the company will not issue any securities to Altura as compensation for its services. Altura has a business address at 1055 West Georgia St., suite 1500, Vancouver, B.C., V6E 4N7, and may be contacted via e-mail at contact@alturamedia.co, or by telephone at 778-988-5503.

Project background and recent exploration work

The Green Monster property comprises 35 federal lode claims covering approximately 700 acres located in Clark county, Nevada, on the west-trending spur of the Spring Mountains and is approximately 40 miles southwest of Las Vegas. Until the recent drill program in May of 2025, no drilling was ever conducted on the property, but the company's previous identification of robust nickel-copper with anomalous cobalt from sampling work done in 2022 indicated that several targets were ideal for shallow RC (reverse circulation) drilling (see news releases dated May 28, 2025, and July 16, 2025).

Glenstar acquired the Green Monster property and conducted initial groundwork in 2022 that included reconnaissance geologic mapping, surface rock sampling, soil sampling and a drone magnetic survey. Channel sampling across the exposed back of a raise off the main shaft returned 1.18 metres of 3.77 per cent Cu (copper), 3.06 per cent Ni (nickel), 0.21 per cent Co (cobalt) and 6.83 per cent Zn (zinc). These values are well in excess of select dump samples from historical underground workings and represent in-place, vein style mineralization. Sampling of oxide- and sulphide-bearing boulders directly downhill of the patented workings has confirmed the presence of very high zinc (greater than 10 per cent) and silver (greater than 200 parts per million), as well as copper, uranium and lead (sampling results provided above were previously published in the Green Monster project NI 43-101 technical report dated June 20, 2023, Section 7.5).

About Glenstar Minerals Inc.

Glenstar is a mineral exploration company with a focus on polymetallic minerals. These elements are classified as critical minerals and are essential in the manufacturing of sophisticated electronics and other vital energy technologies. The company's mission is to leverage its knowledge and connections to explore, acquire, and develop critical mineral and energy metal properties throughout the world.

Glenstar's shares trade on the Canadian Securities Exchange (CSE) under the symbol GSTR, on the Frankfurt Stock Exchange under the symbol VO20 and on the Over-the-Counter market (OTCQB) in the United States under the symbol GSTRF.

Robert Marvin, PGeo (Ontario), is the qualified person as defined by National Instrument 43-101 and is the independent consulting geologist for Glenstar Minerals, who has examined the Green Monster and Wildhorse properties on the ground numerous times since 2022 and 2024, respectively. All fieldwork relating to geologic observations and sampling as reported herein, has been directly overseen by Mr. Marvin who supervised the preparation of, and has reviewed and approved, the technical information in this release.

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