Moss Mine

Overview

The Moss Mine Project is an open-pit, heap leach gold and silver mining operation located approximately 10 miles east of Bullhead City, Arizona, and about 90 miles southeast of Las Vegas, Nevada. The mine is fully permitted and was previously in production, utilizing conventional open-pit mining methods with heap leach processing to recover gold and silver. The operation is supported by established infrastructure, including grid power (installed in 2020) and on-site water supply from wells, with supplemental water as needed.

Background

Originally developed by Golden Vertex Corp., a subsidiary of Northern Vertex Mining Corporation, the project was acquired from Patriot Gold Corp. between 2011 and 2016, resulting in full ownership. The land package was later expanded through additional patented claims.

In 2021, Northern Vertex Mining rebranded as Elevation Gold Mining Corp. In 2024, the company entered creditor protection proceedings in Canada and the United States, leading to a structured sale of its assets. The Moss Mine was sold at the end of 2024, and in March 2025, Mako Mining Corp. completed its acquisition, securing full ownership of the project.

Processing and Other Key Metrics

Plant Type	Heap Leach Operation/Merill-Crowe Recovery Plant
Crush Capacity	10,000 tpd
Avg. Grade Fed To Mill	0.55 g/t(1)
Avg. Annual Production Au	~32K oz Au (1)

(1) Average Operating Results Obtained from 2019-2023

Mineral Reserves

Moss Mine Mineral Reserve Estimate by Classification Category, effective June 30, 2026

Category	Short Tons	Gold (opt)	Gold (oz)	Silver (opt)	Silver  (oz)
Proven	12,527,239	0.0095	119,134	0.1172	1,468,191
Probable	50,116,320	0.0096	478,610	0.0963	4,828,202
Proven + Probable	62,643,559	0.0095	597,744	0.1005	6,296,299

• CIM Definition Standards were followed for Mineral Reserves.
• Effective date of the Reserve estimate is January 1, 2026.
• Mineral Reserves are estimated at a cut-off grade of 0.004 AuEq opt.
• Mineral Reserves are estimated using a long-term gold price of $3,500/oz.
• A minimum mining width of 100 ft was used.
• Bulk density of ore is variable with an average tonnage factor of 12.35 cuft/short ton.
• The average strip ratio is 1.3:1.
• The block model size was regularized to 20ft x 20 ft x 20 ft blocks to reflect dilution and mining selectivity.
• Numbers may not add due to rounding.

Technical Reports

Gallery