Kingman hires Burgex for Rosebud underground sampling

Executive Summary

• Kingman Minerals Ltd. has engaged Burgex Mining Consultants to conduct a staged technical reassessment at its historic Rosebud mine in Arizona, focusing on underground sampling for mineral processing and metallurgical test work.
• The program aims to document underground geometry and vein exposures, collect material for laboratory testing, and refine geological interpretations to guide future exploration decisions.
• This initiative builds upon prior reconnaissance phases in 2020 that identified high-grade gold and silver intercepts in accessible workings.

Key Details

• Contractor Engagement: Burgex Mining Consultants has been hired to perform underground sampling and technical reassessment.
• Program Objectives:
  • Document underground geometry and vein exposures in accessible historic workings.
  • Collect underground material for laboratory mineral processing and metallurgical testing.
  • Refine current geological interpretation and guide next-step exploration.
  • Reduce uncertainty regarding continuity, variability, and metallurgical response (specifically oxide vs. sulphide differences).
• Scope of Work:
  • Underground Access: Work begins at the 100-foot level, with further access to additional levels evaluated based on conditions.
  • Lidar Survey: 3D capture of shafts, drifts, and stopes to establish survey control and preserve a permanent record.
  • Metallurgical Testing: Collected material will be submitted for laboratory processing.
• Timeline: Burgex crew mobilization is expected on or about March 11, 2026, subject to safety planning and authorizations.
• Prior Context (2020 Programs):
  • 100-foot Level: 17 rock samples collected; assays up to 252 g/t Au and 341 g/t Ag over 0.46m (analyzed by ALS Laboratories).
  • 200-foot Level: Channel sampling returned assays up to 688 g/t Au and 468 g/t Ag over 0.18m.
• Qualified Person: Brad Peek, MSc, CPG, Director of Kingman Minerals, has reviewed and approved the technical information under NI 43-101.

Notable Quotes

• "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." — Simon Studer, Interim CEO, President, and Director.
• "The objective is to reduce uncertainty around continuity, variability and metallurgical response -- including potential oxide versus sulphide differences." — Simon Studer.