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 Resources

Moss Mine Mineral Resource Estimate by Classification Category, effective December 18, 2025

All Measured
Cut-Off oz/ton AuEq.	K tons	AuEq (oz/t)	Au (oz/t)	Ag (oz/t)	Au (Koz)	Ag (Koz)
0.005	10,527	0.0113	0.0106	0.1330	112	1,400
All Indicated
Cut-Off oz/ton AuEq.	K tons	AuEq (oz/t)	Au (oz/t)	Ag (oz/t)	Au (Koz)	Ag (Koz)
0.005	52,383	0.0107	0.0102	0.1031	534	5,401
All Measured and Indicated
Cut-Off oz/ton AuEq.	K tons	AuEq (oz/t)	Au (oz/t)	Ag (oz/t)	Au (Koz)	Ag (Koz)
0.005	62,910	0.0108	0.0103	0.1081	646	6,801
All Inferred
Cut-Off oz/ton AuEq.	K tons	AuEq (oz/t)	Au (oz/t)	Ag (oz/t)	Au (Koz)	Ag (Koz)
0.005	13,587	0.0092	0.0090	0.0427	122	580

*Notes: Mineral resources are estimated in conformance with the CIM mineral resource definitions referred to in NI 43-101 Standards of Disclosure for Mineral Projects. This mineral resource estimate covers the Moss Mine Project. Mineral resources that are not mineral reserves do not have demonstrated economic viability. The quantity and grade of the reported inferred mineral resources in this estimation are conceptual in nature and are estimated based on limited geological evidence and sampling. Geological evidence is sufficient to imply but not verify geological and grade or quality continuity. For these reasons, an inferred mineral resource has a lower level of confidence than an indicated mineral resource, however it is reasonably expected that most of the inferred mineral resources could be upgraded to indicated mineral resources with continued exploration. Mineral resources are reported within an optimized constraining shell using a gold price of US$2,500/oz and a silver price of US$29.2/oz with a gold recovery of 75% and a silver recovery of 33%. Gold grades were estimated using 10ft capped composites within 10 geological domains using ordinary kriging. Summation errors may occur in the tabulated results due to rounding.

Technical Reports

Gallery