Kingman hires Burgex for Rosebud underground sampling

Mr. Simon Studer reports KINGMAN ENGAGES BURGEX TO CONDUCT UNDERGROUND SAMPLING AND TECHNICAL REASSESSMENT AT ROSEBUD MINE Kingman Minerals Ltd. has engaged Burgex Mining Consultants to conduct underground sampling to obtain material for mineral processing and metallurgical test work as part of a staged technical reassessment program at the historic Rosebud mine, part of the company's wholly owned Mohave project in Arizona. The program is designed to: (i) document the underground geometry and vein exposures that remain accessible within the historic workings; and (ii) collect underground material for laboratory mineral processing and metallurgical testing under established protocols. The company intends to use the resulting underground record and test results to refine current geological interpretation and guide next-step exploration decisions. Rationale Rosebud was discovered more than 140 years ago and mined intermittently for gold and silver, most prominently during the late 1920s and early 1930s. The historic workings preserve a direct record of how mining progressed through the vein system -- where development advanced, where stoping occurred, where material was left in place and where work ultimately ceased. Simon Studer, interim chief executive officer, president and director, commented: "Recovering material from multiple underground exposures and submitting it to mineral processing and metallurgical test work is one of the most direct ways to clarify what the historic workings reveal -- where mining advanced, where it stopped and what may have constrained development at the time." He continued, "The objective is to reduce uncertainty around continuity, variability and metallurgical response -- including potential oxide versus sulphide differences." Scope of work and timeline considerations The underground sampling and technical evaluation program are designed as a staged campaign integrating geological documentation, survey-grade measurement and material characterization from accessible areas of the historic workings. Key elements include: Underground access and evaluation: work will begin at accessible portions of the 100-foot level, with further access to additional levels evaluated as underground conditions allow; Lidar survey: three-dimensional capture of shafts, drifts and stopes to establish survey control and preserve a permanent underground record; Metallurgical testing: material collected underground will be submitted for laboratory mineral processing and metallurgical testing. Program sequencing and access will be guided by underground safety considerations and site conditions encountered during the work. Burgex's crew mobilization is expected to occur on or about March 11, 2026, subject to final safety planning and authorizations. Prior underground reconnaissance phases In early 2020, Burgex accessed the 100-foot level and collected 17 rock samples. No access was obtained below that level at the time due to obstructions within the shaft. Reported assays included values up to 252 grams per tonne gold and 341 grams per tonne silver over 0.46 metre (see May 14, 2020, news release). These samples were analyzed by ALS Laboratories in Reno. A subsequent 2020 program cleared debris below the 100-foot level and accessed the 200-foot level. Channel sampling during that phase returned assays up to 688 g/t gold and 468 g/t silver over 0.18 metre (see May 19, 2020, news release). These programs identified high-grade results within accessible workings and informed the design and sequencing of the current staged underground reassessment. Technical disclaimer Historical underground sampling referenced herein, including grab and channel samples, is selective in nature and may not be representative of overall mineralization. Reported assay results should not be relied upon as indicative of grade continuity, tonnage potential or economic viability. Qualified person The technical information contained in this news release has been reviewed and approved by Brad Peek, MSc, CPG, a qualified person as defined under National Instrument 43-101, Standards of Disclosure for Mineral Projects. Mr. Peek is a director of Kingman Minerals. About Kingman Minerals Ltd. Kingman Minerals is a publicly traded exploration and development company focused on precious metals in North America. The company's flagship project comprises the fully owned historic Rosebud mine, located in the Music Mountains in Mohave county, Arizona. High-grade gold and silver veins were discovered in the area in the 1880s and were mined mainly in the late 1920s and 1930s. Underground development on the Rosebud property included a 400-foot main shaft and approximately 2,500 feet of drifts, raises and crosscuts. We seek Safe Harbor.