Sage Potash Corp.'s Updated Mineral Resource Estimate Delivers 226 Million Tonnes at 41.36% KCl in Measured & Indicated and an Additional 545.4 Million Tonnes at 41.53% KCl in Inferred

(TSXV:SAGE, OTCQB:SGPTF) Sage Potash Corp. announced a significant upgrade to its potash resource estimates following the completion of its Summer 2026 drill program at the Sage Plain Potash Project in Utah's Paradox Basin. The new Mineral Resource Estimate (MRE), prepared by RESPEC LLP, expands the inferred potash resource and introduces measured and indicated resource categories. The measured potash resource is 54.3 million tonnes grading 41.31% KCl. The indicated potash resource is 171.8 million tonnes grading 41.37% KCl. The inferred potash resource is 545.4 million tonnes grading 41.53% KCl. The Summer 2026 drilling of the Peterson 1 Well delivered high-grade thick intervals in both the Upper and Lower Cycle 18 potash beds, confirming lateral continuity and high grades suitable for solution mining. For the Upper 18 bed, measured resources cover an area of 3.05 km2 (2.29 km2 with exclusions), with an average thickness of 7.2 m, average KCl grade of 40.73%, in-place sylvinite tonnage of 33.9 million tonnes, average carnallite content of 0.09%, and average insoluble content of 0.47%. For the Lower 18 bed, measured resources cover 3.05 km2 (2.29 km2 with exclusions), with an average thickness of 4.3 m, average KCl grade of 42.27%, in-place sylvinite tonnage of 20.4 million tonnes, average carnallite content of 0.01%, and average insoluble content of 0.42%. For the Upper 18 bed, indicated resources cover 9.64 km2 (7.23 km2 with exclusions), with an average thickness of 7.1 m, average KCl grade of 40.88%, in-place sylvinite tonnage of 106.8 million tonnes, average carnallite content of 0.09%, and average insoluble content of 0.48%. For the Lower 18 bed, indicated resources cover 9.64 km2 (7.23 km2 with exclusions), with an average thickness of 4.3 m, average KCl grade of 42.17%, in-place sylvinite tonnage of 65.0 million tonnes, average carnallite content of 0.01%, and average insoluble content of 0.42%. For the Upper 18 bed, inferred resources cover 30.56 km2 (22.92 km2 with exclusions), with an average thickness of 7.1 m, average KCl grade of 41.17%, in-place sylvinite tonnage of 336.9 million tonnes, average carnallite content of 0.09%, and average insoluble content of 0.48%. For the Lower 18 bed, inferred resources cover 30.56 km2 (22.92 km2 with exclusions), with an average thickness of 4.4 m, average KCl grade of 42.11%, in-place sylvinite tonnage of 208.5 million tonnes, average carnallite content of 0.01%, and average insoluble content of 0.42%. The total measured and indicated resource is 226.1 million tonnes, and the total resource is 771.5 million tonnes. The density of sylvinite is 2.07 tonnes/m3. The gross resource is based on a 100% extraction ratio and 0% plant loss. The measured resource radius of influence is 0-750 m, indicated is 750-2,000 m, and inferred is 2,000-4,000 m. Exclusions for unknown seismic anomalies are 25% of the area due to no 3D seismic completed. The upgraded resource estimate represents a 259% increase in tonnage compared to the Preliminary Economic Assessment Technical Report dated November 6, 2025 (effective date September 8, 2025). The company will publish and file a Technical Report on Sedar+ within 45 days of this release. Next steps include advancing solution-mining engineering and process design, continued environmental study work and permitting, ongoing collaboration with regional stakeholders and local communities, and trade-off and availability studies for power, water, and transportation logistics. The company plans to summarize these facets and demonstrate financial viability in a Pre-Feasibility Study. The scientific and technical information in the release has been reviewed and approved by Eric Hemstad, PE, a Qualified Person as defined by NI 43-101 and Consulting PE at RESPEC Company, LLC, who is independent of Sage Potash. Pat Varas is CEO and Director of Sage Potash.

Sage Potash Confirms Multiple Water Bearing Zones at Sage Plain Project - Advancing Development Strategy

(TSXV:SAGE, OTCQB:SGPTF) Sage Potash Corp. announced positive hydrogeological testing results from the Peterson 1 well at its flagship Sage Plain Potash Project in southeast Utah. Two saline, non-potable water-bearing zones were confirmed within the project area, with preliminary results supporting their potential use as future process water for solution mining operations. The identified zones occur at depths consistent with the Company's existing water right, which authorizes up to 185,000 cubic meters of brackish groundwater annually for processing and solution mining. Northstar Drillstem Testers Inc. conducted three inflate-straddle Drill Stem Tests (DSTs) over 38-meter intervals of the 8¾ inch hole between July 17 and July 19, 2026. DST 1 (Cutler Formation, 1,033 - 1,071 m; 3,390 - 3,515 feet) recovered 663 m (2,175 feet) of formation water, with shut-in pressures of 1,068 psig and 1,061 psig, and a preliminary yield estimate of 7 m³/h (75 gpm). DST 2 (Lower Cutler/Rico Formation, 1,250 - 1,288 m; 4,100 - 4,225 feet) recorded a shut-in pressure of 1,345 psig but produced negligible inflow. DST 3 (Lower Cutler/Rico Formation, 1,295 - 1,334 m; 4,250 - 4,375 feet) recovered 610 m (2,000 feet) of formation water, with shut-in pressures of 1,434 psig and 1,419 psig, and a preliminary yield estimate of 4.5 m³/h (20 gpm). Fluid samples from DST 1 and DST 3 were analyzed by ACZ Laboratories, Inc.; DST 1 had a calculated dissolved solids content of 32,400 mg/L and DST 3 had 79,600 mg/L, both sodium-chloride type waters and non-potable. The Utah Division of Water Rights approved the Company's 20-year Fixed-Time Application (Water Right 09-2684, Application F83735) in July 2023, authorizing withdrawal of up to 150 acre-feet annually of brackish water from an underground aquifer at approximately 1,200 meters (3,950 feet) depth. An additional high permeability zone was identified in the Honaker Trail Formation between 1,408 and 1,445 m (4,620 and 4,740 feet), with approximately 12.7 cubic meters (80 barrels) of drilling fluid lost and continued losses of 1.6 cubic meters (10 barrels) per hour to 1,509 m (4,950 feet), indicating a highly permeable, high-transmissivity horizon. The hydrogeological results will be incorporated into ongoing and future engineering studies and the updated NI 43-101 resource estimate. The scientific and technical information was reviewed and approved by Greg Vogelsang, P.Geo., P.Eng., Vice President, Project Development for Sage Potash. J. Patricio Varas is CEO and Director of Sage Potash.

Sage Potash Delivers 3.3 Meters of 52.5% KCl at Its Sage Plain Project in Utah

(TSXV:SAGE, OTCQB:SGPTF) Sage Potash Corp. has announced potash assay results from the Peterson 1 drilling program at its flagship Sage Plain Potash Project in southeast Utah. The Saskatchewan Research Council lab assays returned three high-grade potash sections grading better than 50.0% KCl within the Upper and Lower Cycle 18 potash beds. In the Upper Cycle 18 horizon, 10.8 feet (3.3 m) graded 52.5% KCl and 3.3 feet (1.0 m) graded 52.0% KCl within a 26.6 foot (8.1 m) intersection grading 36.1% KCl. The Lower Cycle 18 bed included a 10.1 foot (3.1 m) section grading 53.4% KCl within a 16.4 foot (5.0 m) intersection grading 36.4% KCl. The combined grade and thickness for Cycle 18 is 36.3% over 43 feet (13.1 m). The Peterson 1 hole is located 0.62 miles (1.0 km) north-northeast of the Johnson 1 hole, confirming continuity and high-grade tenor between the two. The beginning of the Upper Bed of Cycle 18 was encountered at 7,085.6 feet (2,159 m) at Peterson 1, with a dip of approximately 0.8 degrees. A barren halite interval of 42 feet (12.8 m) separates the Upper and Lower Beds. Assays indicate less than 1% insoluble materials and traces of carnallite. At 7,094.5 feet (2,162.4 m), a 13.8 foot (4.22 m) interval grading 45.5% KCl was recovered within a 19.7 foot (5.99 m) intercept grading 39.4% KCl. The Johnson 1 hole previously returned 23.8 feet (7.26 m) at 46.1% KCl in the Upper Bed and 18.0 feet (5.48 m) at 35.8% KCl in the Lower Bed. The Peterson 1 stratigraphic exploration hole was completed on August 4, 2026. Eight one-foot core sections were removed for geo-mechanical testing, with gamma ray results used for potash content in the absence of assays. RESPEC LLC has been engaged to perform a new NI 43-101 resource calculation, with an updated resource estimate planned for delivery in the next 45 days. The September 8, 2025 PEA contemplated a development of 300,000 tonnes per year. The Sage Plain Project is described as containing one of the highest-grade potash resources in the world. Patricio Varas is CEO of Sage Potash. Greg Vogelsang, P.Geo., P.Eng., Vice President Project Development, is the Qualified Person for the release.

Sage Potash Provides Investor Relations and Marketing Update

(TSXV:SAGE) Sage Potash Corp. has amended its ongoing investor-relations engagement with Fairfax Partners Inc. of Vancouver, British Columbia, effective August 17, 2026, to a consolidated monthly fee of CAD $2,950 plus applicable taxes, replacing the prior fee of CAD $5,000 per month. The engagement with Fairfax is month-to-month, and no portion of the compensation is contingent upon, or determined by reference to, the price or trading volume of the Company's securities, nor will Fairfax receive any securities of the Company as compensation. The Company has entered into an investor relations agreement with Howard Isaacs and RIHO, LLC, each of Encino, California, effective August 14, 2026, for a period of three months, for a fee of US$2,500 per month payable to each, totaling US$5,000 per month, payable in advance from the Company's working capital, with an anticipated cost of US$15,000 over the three-month period. No portion of the compensation to Howard Isaacs and RIHO, LLC is contingent upon, or determined by reference to, the price or trading volume of the Company's securities, and the Service Providers will not receive any securities of the Company as compensation. The Company has entered into a one-year website sponsorship and advertising agreement with Caesar Holdings BV, the owner and operator of CaesarsReport.com, commencing August 22, 2026 through August 21, 2027, for a total fee of €14,000, with the Company responsible for any foreign exchange and banking costs. Under the agreement with Caesar Holdings BV, the Company will become a sponsor of the Caesar Holdings-operated websites, and the arrangement is strictly for advertising and website sponsorship and does not provide for, or involve, any buy, sell or hold recommendation regarding the Company's securities. Sage Potash is dedicated to the development of its flagship Sage Plain potash project, located in the Paradox basin, Utah, and is advancing toward its goal of establishing a secure and sustainable domestic potash production platform in the United States.

Sage Potash Successfully Completes Peterson 1 Drill Program and Commences Core Analysis

(TSXV: SAGE) (OTCQB: SGPTF) Sage Potash Corp. announced the successful completion of drilling operations at the Peterson 1 well, located at the Company's Sage Plain Potash Project in southeast Utah. The Peterson 1 well reached a total depth of 2,248 metres and successfully intersected the targeted Cycle 18 Upper and Lower potash-bearing beds. Continuous core was recovered from both mineralized intervals and is being prepared for shipment to the Saskatchewan Research Council in Saskatoon, Saskatchewan for detailed geological logging and assays. The company is currently completing a comprehensive suite of downhole geophysical surveys, including a gamma ray survey. The Peterson 1 drill program was designed to validate the continuity, thickness and grade of the Company's potash mineralization while collecting critical geological information to support future resource updates, engineering studies and project development. Sage Potash Corp. is dedicated to the development of its flagship Sage Plain Potash Project, located in the Paradox Basin, Utah. The company will continue to provide updates as results become available.

Sage Potash Kicks off Drilling After Completing Rig Set-Up

(TSXV: SAGE) (OTCQB: SGPTF) Sage Potash Corp. announced the initiation of drilling at its Sage Plain Potash Project in the Paradox Basin, southeast Utah. Drake Well Service Inc. has been engaged to provide drilling services and completed all equipment mobilization and setup at the Project site. Site preparation was completed the week of June 29, 2026 by Crowley Construction, and drilling began on July 08, 2026. The company anticipates about 20 days to reach the Cycle 18 potash horizon at a depth of approximately 2,100 meters (6,890 feet). The drilling program includes continuous potash core recovery for laboratory assays to determine potash grades and thicknesses, and core will also be analysed for geo-mechanical properties and hydrogeological testing. All detailed core logging, sampling, and preparation for assaying will take place at the SRC Laboratory in Saskatoon, Saskatchewan. The Paradox Basin potash deposits targeted by this program host multiple potash-bearing horizons, including the highly prospective Cycle 18 Upper and Lower beds, which represent the Company's primary exploration targets.

Sage Potash Announces Single Derrick Drill Rig Mobilization and Site Preparation at Sage Plain Potash Project in Utah

(TSXV: SAGE) (OTCQB: SGPTF) Sage Potash Corp. announced that site preparation and mobilization activities for its 2026 drilling program are underway at the Company's flagship Sage Plain Potash Project, located in the Paradox Basin of southeastern Utah, USA. Site preparation includes access road construction, topsoil removal, site levelling, perimeter berm construction, storm water management preparations, and construction of an aggregate platform to create a stable rig base. Drilling operations are expected to commence approximately two weeks from current site preparations. The Company will be drilling a 1.275 km (3/4 mile) step out hole to the NNE from the maiden hole from which the Company's current resource is calculated. Historical drillhole data has identified significant potash mineralization within the Cycle 18 Upper and Lower beds at depths of approximately 2,100 metres (6,890 feet): a thickness of 7.26 m (24 ft) at 46% KCl in the Upper bed and a thickness of 5.46 m (18 ft) at 35.8% KCl in the Lower bed. The Company anticipates releasing an updated resource estimate for Sage Plain in late Q3, 2026. The drilling program will also include a comprehensive hydrogeological assessment, including targeted Drill Stem Tests (DSTs) and fluid sampling for future solution mining operations.

Sage Potash Secures All Permits for its Drilling Program at Sage Plain Potash Project in Utah

(TSXV: SAGE) (OTCQB: SGPTF) Sage Potash Corp. announced it has now received all required approvals and permits from both the local County and the State of Utah to proceed with drilling operations at its Sage Plain project in San Juan County in Utah. Final approvals were granted following a customary site inspection conducted on May 28, 2026, by representatives of the Utah Division of Oil, Gas and Mining, accompanied by personnel from Sage Potash and its contractors, along with posting of drilling related bonds. The Company will be drilling a 1.275 km (3/4 mile) step out hole to the NNE from the maiden hole from which the Company's current resource is calculated. Historical drillhole data has identified significant potash mineralization within the Cycle 18 Upper and Lower beds at depths of approximately 2,100 metres (6,890 feet). The Company expects to release an updated resource estimate in Q3 2026, incorporating results from the current drilling campaign and historical drilling data. The current drilling program is specifically designed to target these potash-bearing horizons and expand and upgrade the resource confidence levels. The Company and its contractors intend to mobilize for this drill program in short order.

Sage Potash Announces Revised Purchase Agreement for Plant and Equipment

(TSXV: SAGE) Sage Potash Corp. announced revised terms to the Plant and Equipment Purchase with International Process Plants and Equipment Corp. for a purchase price of € 11 million. The equipment includes three evaporators, three crystallizers, and various ancillary equipment stored in the Netherlands and the United States, with a design capacity of up to 300,000 tonnes per year of potash output. The Company will make a current payment of € 1,280,000, of which € 987,000 will be applied to the principal balance and € 293,000 to storage fees and interest, leaving a balance of € 9,173,000. Storage fees are set at € 11,900 per month, and there is recognition of € 555,000 in accrued but unpaid interest, with payment of some or all of this amount between now and October 2026 from any cash inflows from financing activities. If the next financing is conducted before April 2027, € 555,000 less the Interim Paydown and 20% of the financing proceeds will be allocated towards the balance of the Purchase Price, which must be paid by April 30, 2027, with an outside date of July 15, 2027. IPP will have the right to convert up to 50% of the then balance of the Purchase Price into common shares at C$0.25/share, subject to a maximum share issuance to IPP of 15% of the Company's then issued and outstanding common shares. The company projects the successful completion of the Summer 2026 drill program at the Sage Plain Potash Project, an updated resource estimate, and advancement toward Pre-Feasibility and Feasibility Studies.

Sage Potash Corp. Announces Investor Relations and Corporate Development Agreements

Sage Potash Corp. (TSXV: SAGE, OTCQB: SGPTF) announced it has entered into consulting agreements with Fairfax Partners Inc., Made Partners Inc., and Integrous Capital Partners, LLC to support investor relations, digital marketing, and corporate development. The Fairfax Agreement includes a monthly fee of CAD $3,805.00 plus GST, a CAD $1,195.00 monthly subscription fee, and a digital marketing budget of up to CAD $120,000.00 per year plus GST. The Integrous Agreement provides for a monthly fee of USD $9,000.00 plus applicable taxes, while the Made Agreement includes a monthly fee of CAD $10,000.00 plus GST and potential eligibility for stock options. All agreements are subject to acceptance by the TSX Venture Exchange and are payable from existing cash on hand.

Sage Potash Moves Forward on Drill Program, Appoints Drake Well Service for Sage Plains Project

Sage Potash Corp. (TSXV: SAGE, OTCQB: SGPTF) announced continued progress on its drill program at the Sage Plain potash project in the Paradox basin, southwestern Utah. The company has selected Drake Well Service Inc. to complete the drilling program, which is anticipated to commence in Q2 2026, with site construction and mobilization scheduled to start at the end of May and drilling commencing in early June. Three weeks have been scheduled to complete the drilling and core recovery, with demobilization complete by the end of June. An updated resource estimate is anticipated in mid Q3 2026. The drilling program will target high-grade Cycle 18 Upper and Lower beds at depths of 2,100 meters (6,890 feet).