Announcement • Jun 18
Glenstar Minerals Inc. Provides Green Monster Project Update Following Discovery Of High-Grade Polymetallic Mineralization In Nevada Glenstar Minerals Inc. has had a very productive year since it began the Phase 1 drill program at its Green Monster Project, located in Clark County, Nevada in May of 2025. Since initiating drilling at the Green Monster in May 2025, Glenstar has achieved several significant milestones that have advanced the project and enhanced the Company's understanding of its mineral potential. Over the past year, Glenstar has confirmed significant polymetallic mineralization, completed two drill programs, expanded its geological knowledge through advanced geophysical surveys, and is currently evaluating next-generation exploration technologies to support future drilling and target development. Following the initial reverse circulation Phase 1 drill program that was conducted in May of 2025, assays showed that Green Monster contained a zone of high-grade >30% zinc along with 5.7 oz/t silver, 0.0523% nickel, 0.0019% cobalt and >36% copper. Mineralization was intersected at depths from ~131 metres (~430 feet) to ~142 metres (~465 feet) and occurs in the hanging wall of the larger district scale Green Monster Fault Zone. This zone of robust polymetallic mineralization was discovered at Hole GMST-4 which was drilled to test a magnetic high that was identified during previous exploration field sampling work. The mineralization was intersected within a complex rock unit mostly comprised of limestone, sandstone, and shale; which is known to be disrupted by numerous thrust faults and is contained within a strongly decalcified section of the host rocks. The alteration appeared to consist of acid leaching of carbonate from the host limestone by hot water fluids which permeated the host rock during mineralization. This represents a strong decalcification event in which carbonate was flushed from the host rock, resulting in high permeability of the zone. The permeable zone was then invaded by ore forming fluids travelling through the porous zone and resulting in the deposition of zinc, silver, copper, and cobalt being flooded into the altered area during the main mineralization event. This style of alteration and mineralization in carbonate host rocks is a significantly important type of ore formation and is seen as the primary mineralizing style for the large gold deposits of the Carlin Trend in Nevada. Also of note is that the base metal intercept in GMST-4 contains highly anomalous gallium up to 50 g/t, which is considered quite noteworthy given that the average worldwide production grade of gallium is approximately 50 g/t with most of the production coming from zinc rich polymetallic deposits. The Company also applied to the Bureau of Land Management for a permit to conduct a second phase of drilling at Green Monster, which was granted in late November. The permit allowed Glenstar to drill nine holes over four locations on the property and was planned to be comprised of approximately 300 metres (984 feet) of strike length drilling exploration. The Company planned to collar two holes in the area of the primary drilling that was conducted on Phase 1; three holes were slated to focus on the area considered the “discovery” zone where Hole GMST-4 was drilled; and two holes each at two sites situated further west along what was believed to be the mineralized east-west trending belt. In December of 2025 Glenstar contracted Alloy Drilling of Elko, Nevada, to conduct the Phase 2 reverse circulation drill program at Green Monster, which commenced December 15 and continued into January and early February of 2026, allowing for a break over the Christmas holiday season. The Phase 2 drill program concluded in early February, and all the samples were sent to ALS Chemex in Vancouver, B.C. for assay analysis. Ultimately, six holes were drilled to various depths from 500 feet to 585 feet, and angles from vertical to 65 degrees. A track mounted RC drill was utilized for this second round of drilling, and preliminary observations by project geologist Bob Marvin in the field indicated that three of the six holes drilled contained highly fractured rock with abundant clay alteration and brightly coloured orange and red oxide minerals and decalcification. The six holes were collared at three drill pads, with three holes being drilled at the site of the “discovery” hole that was encountered in the Phase 1 drill program; two of these holes were considered to be of substantial interest while the third hole did not exhibit the same level of fracturing and alteration. One hole was collared approximately 90 meters to the southwest of the “discovery” hole and the rock recovered from this hole also indicated substantial fracturing and alteration of the rock with abundant clay along with bright orange and red oxide minerals. This hole is also considered to be of significant interest, however, a visual inspection of the rock from two holes drilled at the original area of interest were considered to be unremarkable. The Phase 2 drill program consisted of a total of ~3,320 feet. Assay results from Phase 2 were returned to the Company in early April of 2026 and continued to show polymetallic mineralization along the trend line that was drilled in the Phase 1 drill program. Numerous polymetallic zones were encountered during Phase 2 and the assay results confirmed that the area of interest continues to be significantly mineralized and quite geologically complex. The grades reported were less than anticipated but continued to support the findings of the Phase 1 drill program, while at the same time raising a number of interesting questions. Announcement • May 15
Glenstar Minerals Inc Announces Completion of Initial Drilling At Wildhorse Project in Nevada Glenstar Minerals Inc. announced that the Phase 1 reverse circulation drill program at the Company's Wildhorse Project in Mineral County, Nevada, has been completed, with a total of six reverse circulation drill holes being completed at the Rattlesnake Zone, in addition to four holes previously reported at the Coca Cola Zone. Each of these six holes explored the Rattlesnake Zone's down dip extension 85 to 110 meters east of outcropping mineralization which were worked by a series of historic decline developments. All holes drilled showed intervals of strong alteration with quartz veinlets contained within a strongly foliated meta sedimentary host rock. Contacts between this receptive host rock and a feldspar porphyry intrusive rock are particularly well altered, with visual mineralization containing abundant oxide minerals and quartz veinlet swarms. The overall plan of the drilling at Rattlesnake was to target the area believed to be the core of a high-grade polymetallic system that previously showed promising results. This style of mineralization is being intersected both at depths of 100 to 150 meters down hole, as well as at near surface positions on hole RTSRC-3 and hole RTSRC-6, where strong quartz veinlet development is present at 0 to 25 meters down hole. The visual results of the drilling at Rattlesnake continues to indicate strong potential for a polymetallic resource discovery in both near surface and in the down dip extensions of the historic working positions. As a result of observations in the field during the drill program, the total number of feet drilled at Wildhorse increased from a planned 3,500 feet to 4,300 feet. The Wildhorse Property is comprised of 89 mineral claims, representing 1,780 acres (720 hectares) in Mineral County, Nevada, and was initially targeted after compilation of all available data, including notes of a 1975 field examination contained in the Anaconda Company archives housed at the university of Wyoming. The claims show historical workings that appear to date from the late 1800's and early 1900's. Other claim stakes that the geological team discovered on the property indicate the last time the area was staked was 2011, however, these claims were never registered with the BLM. Preliminary geological assessment of the claims, and the area in general, indicate there are a series of east dipping mineralized zones. Initial field examination of the property identified and sampled a quartz veinlet zone containing in excess of 1 gram per ton gold, 1% copper, and 6,100 ppm of antimony. It was also reported that outcropping zones also contain bismuth and tungsten, which points to a focused intrusive source for the epidote skarn alteration and poly-metallic system. Announcement • May 02
Glenstar Minerals Inc Provides Update On Wildhorse Project Drilling Program In Nevada Glenstar Minerals Inc. announced that the Phase 1 reverse circulation drill program at the Company's Wildhorse Project in Mineral County, Nevada, is underway and work is currently focused on the Rattlesnake Zone. Drilling began at the Coca Cola Zone and four (4) holes were completed in the target area during week one of the planned three-week program. A number of narrow intervals of strong alteration with local copper oxide mineralization were encountered prior to the drill rig being moved to the Rattlesnake Zone, which lies approximately 1,600 feet to the northeast of the Coca Cola Zone. Hole RTSRC-1 intersected several multi meter scale intervals of strong oxide alteration/mineralization from surface to 345 feet. From 345 to 385 feet a partially oxidized zone of strong sulfide mineralization, quartz veinlets and silicification was intersected. Field identified sulfide minerals include chalcopyrite and fine-grained silver-grey minerals. The mineralized interval emits a strong odor of hydrogen sulfide. Sulfide abundance is estimated at 5%. Oxide minerals are present on fracture and range in color from yellow to orange to bright blue. Hole RTSRC-2 indicates multi-meter gossanous orange and red zones are prevalent from surface to 215 feet down hole (150 feet below the surface). From 215 feet to 245 feet, a 30 foot down hole interval returned an intense zone of oxide mineralization with abundant quartz veinlets was intersected. Preliminary conclusions of the drilling at Rattlesnake thus far indicate that we have successfully intersected the main Rattlesnake mineralized zone in a downdip position located 320 feet east of outcropping mineralized positions. All observations of intervals of alteration and sulfide mineralization represent down hole intervals and it should be noted that Glenstar does not have sufficient data to report true intercept widths at this time. The drilling at Wildhorse is expected to continue for another 7 to 10 days, at which time all of the samples will be shipped to Paragon Geochemical Inc. in Sparks Nevada for assay analysis. The Wildhorse Property is comprised of 89 mineral claims, representing 1,780 acres (720 hectares) in Mineral County, Nevada, and was initially targeted after compilation of all available data, including notes of a 1975 field examination contained in the Anaconda Company archives housed at the university of Wyoming. The claims show historical workings that appear to date from the late 1800's and early 1900's. Other claim stakes that the geological team discovered on the property indicate the last time the area was staked was 2011, however, these claims were never registered with the BLM. Preliminary geological assessment of the claims, and the area in general, indicate there are a series of east dipping mineralized zones. Initial field examination of the property identified and sampled a quartz veinlet zone containing in excess of 1 gram per ton gold, 1% copper, and 6,100 ppm of antimony. It was also reported that outcropping zones also contain bismuth and tungsten, which points to a focused intrusive source for the epidote skarn alteration and poly-metallic system. 
