Kingman reports 82.3% gravity-recoverable gold, 93.5% recovery at Rosebud

12.52 g/t Au Master Composite; Gravity Concentrate Grades 379.97 g/t Au; Results Support Expanded Exploration and Metallurgical Program

Vancouver, British Columbia--(Newsfile Corp. - September 2, 2026) - Kingman Minerals Ltd. (TSXV: KGS) (OTCQB: KGSSF) (FSE: 47A) (the "Company" or "Kingman") is pleased to announce the results of preliminary metallurgical test work completed by Sepro Laboratories, a division of Sepro Mineral Systems Corp. ("Sepro"), on mineralized material from the Company's Rosebud Gold Property in Arizona.

The results demonstrate a highly favourable metallurgical response, including 82.3% Gravity Recoverable Gold ("GRG") , a gravity concentrate grading 379.97 g/t gold ("Au") , and a preliminary 93.5% overall gold recovery from a combined gravity and rougher flotation flowsheet.

The results provide important new information regarding the nature and potential processing characteristics of the gold mineralization at Rosebud and support the Company's plans to advance the Property through additional geological, metallurgical and technical work.

"The Rosebud metallurgical program was designed to evaluate the gravity response of the mineralization and the flotation response of the resulting gravity tailings. The testing demonstrated a strong gravity response, with 82.3% of the gold reporting to the gravity concentrate under the GRG test conditions. The subsequent rougher flotation testing demonstrated that a significant portion of the remaining gold could also be recovered by flotation. These results indicate that the material tested has favourable characteristics for further investigation of a combined gravity and flotation flowsheet.

"The results are encouraging for a project at this stage because the combination of high gravity recoverability, rapid flotation kinetics and strong overall preliminary recovery provides a solid basis