Kingman Engages Burgex to Conduct Underground Sampling and Tech- Nical Reassessment at Rosebud MINE
TSX-V: KGS
OTCQB: KGSSF
Frankfurt: 47A1
FOR IMMEDIATE RELEASE
KINGMAN ENGAGES BURGEX TO CONDUCT UNDERGROUND SAMPLING AND TECH-
NICAL REASSESSMENT AT ROSEBUD MINE
Vancouver, British Columbia – March 5, 2026 – Kingman Minerals Ltd. (TSXV: KGS)
(OTCQB: KGSSF) (Frankfurt: 47A1) (“Kingman” or the “Company”) is pleased to announce
that it has engaged Burgex Mining Consultants to conduct underground sampling to obtain mate-
rial for mineral processing and metallurgical testwork 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.
Figure 1 - Burgex personnel conducting a surface inspection and safety assessment of the historic Rosebud Mine
production shaft area during a recent site visit.
TSX-V: KGS
OTCQB: KGSSF
Frankfurt: 47A1
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 CEO, President and Director, commented: “Recovering material from mul-
tiple underground exposures and submitting it to mineral processing and metallurgical testwork is
one of the most direct ways to clarify what the historic workings reveal—where mining advanced,
where it stopped, and what may hav e constrained development at the time. He continued: “The
objective is to reduce uncertainty around continuity, variability, and metallurgical response—in-
cluding potential oxide versus sulfide 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 in-
cluded values up to 252 g/t gold and 341 g/t silver over 0.46 metres ( see May 14, 2020 NR).
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 metres (see May 19, 2020 NR).
TSX-V: KGS
OTCQB: KGSSF
Frankfurt: 47A1
Figure 2 – Longitudinal section of the historic Rosebud Mine workings showing interpreted vein blocks, historic under-
ground development, and locations of previous sampling. Values in red were collected by Burgex during the 2020
underground sampling programs. All values are presented in Au (g/t)/Ag (g/t).
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 se-
lective 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 viabil-
ity.
Qualified Person
The technical information contained in this news release has been reviewed and approved by
Brad Peek, M.Sc., CPG, a Qualified Person as defined under National Instrument 43-101 – Stand-
ards of Disclosure for Mineral Projects. Mr. Peek is a Director of Kingman Minerals Ltd.
ABOUT
TSX-V: KGS
OTCQB: KGSSF
Frankfurt: 47A1
Kingman Minerals Ltd. (TSX-V: KGS) 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, 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.
For further information please contact:
Simon D. Studer
Interim CEO, President & Director
Phone: +41 77 459 16 20
Corporate Office
Tel: +1 (604) 685-7720
Email: [email protected]
Web: www.kingmanminerals.com
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the
TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
Cautionary Statement Regarding Forward-Looking Information This news release contains forward-looking infor-
mation within the meaning of applicable securities laws. Forward-looking information includes, but is not limited to,
statements regarding the planned scope, timing, mobilization, underground access, extracti on, sampling, laboratory
and metallurgical testing, and expected outcomes of the underground program. Forward-looking information is based
on management’s current expectations and reasonable assumptions, but involves known and unknown risks, uncer-
tainties and other factors that may cause actual results to differ materially, including permitting and regulatory require-
ments, underground conditions, safety and access constraints, contractor availabilit y and performance, laboratory ca-
pacity and turnaround times, and general market and economic conditions. Readers are cautioned not to place undue
reliance on forward-looking information. The Company undertakes no obligation to update forward-looking information
except as required by law.