Arizona Gold & Silver Reports On Continuing Philadelphia Project, Arizona Metallurgical Program - Core Drilling Program Resumes

Core Insights - Arizona Gold & Silver Inc. announced positive results from column leach tests at the Philadelphia Project, indicating the effectiveness of HPGR crushing for gold and silver extraction [1][2] - The company is resuming core drilling to further explore the high-grade intercepts previously identified [1][8] Metallurgical Work Highlights - After 119 days of leaching, the bulk sample crushed by HPGR to -6.3mm achieved a 76% recovery rate for gold and 40% for silver, which is 16% higher for gold and 12% higher for silver compared to conventional crushing methods [2] - Initial recoveries were 51% for gold and 26% for silver after 4 days, and 60% for gold and 32% for silver after 20 days [2] - The goal is to achieve an 80% recovery of total contained gold within 150 days at the -6.3mm crush size [2] Exploration Update - The core drill is set to target the Perry Vein, aiming to drill 60 meters north of a previously reported high-grade intercept of 20.43 meters grading 9.04 gpt Au and 34 gpt Ag [1][8] - The exploration drilling has established substantial volumes of stockwork material above the high-grade zone, which carries gold grades of 0.4-1.5 gpt [4] Processing and Economic Viability - The metallurgical program aims to demonstrate the potential viability of heap leach operations alongside underground development of high-grade material [4][5] - The company is evaluating the material from mining, processing, and economic perspectives, with comparisons to other open-pit heap leach operations in the area [5] Quality Assurance and Testing - The bulk sample was collected and tested by Kappes, Cassiday & Associates, a respected service company in the mining industry [6] - All data gathering and analyses are performed by KCA, with weekly reporting and review by company personnel [6]