CTGO:CA:

CTGO:

SILVER:

GOLD:

Manh Choh Project

Manh Choh Project


Producing High-Grade Gold with Kinross in Eastern Interior Alaska

Key Highlights

Producing | 30% Interest

Manh Choh is in commercial production through the Peak Gold Joint Venture, in which Contango holds a 30% interest and Kinross Gold is the 70% operator.

~60,000 oz Gold Per Year

Contango’s share of production averages approximately 60,000 ounces of gold annually over the life of mine, generating substantial free cash flow.

~7 g/t Au

One of the highest-grade open pit gold mines in the world, anchored by 1.3 million ounces of Measured and Indicated gold resources.

15 km from the Alaska Highway

Direct road access from the Alaska Highway via a 15-kilometer road, with ore processed at an existing, fully permitted facility.

Overview

Project Overview

Manh Choh is the cash flow engine of the Contango Silver & Gold story. Contango holds a 30% interest in the mine through the Peak Gold Joint Venture, with Kinross Gold acting as the 70% owner and operator. The mine achieved first gold production in July 2024 and now delivers an average of approximately 60,000 ounces of gold per year to Contango’s account over the life of mine.

The project is located on Native Alaskan Tetlin Tribal lands in Alaska’s eastern Interior, near the village of Tetlin and the community of Tok. The Peak deposit sits on a group of low hills in the northern portion of the lease and is accessible from the Alaska Highway via a 15-kilometer road. To date, 1.3 million ounces of Measured and Indicated gold resources have been outlined in a skarn-type mineral deposit, defined by 55,321 meters of drilling in 300 drill holes.

Manh Choh is the proof of concept for Contango’s Direct Ship Ore (DSO) model. Rather than building a new mill on site, ore is mined and hauled by road to an existing, fully permitted processing facility, the Fort Knox milling facility located outside of Fairbanks, Alaska. This approach dramatically reduces capital costs, shrinks the environmental footprint, and shortens the path from discovery to cash flow.

For more information about the mine, visit manhchoh.com.

Watch the Project Story

Watch Kinross’ video of the full Manh Choh mining and processing operation

Key Project Metrics

Location Native Alaskan Tetlin Tribal lands, eastern Interior Alaska, near the Village of Tetlin and Tok; Tetlin Hills area
Ownership Contango Silver & Gold 30%, Kinross Gold 70% (operator), through the Peak Gold Joint Venture; project subject to royalties under the Tetlin Lease
Status Producing (first gold July 2024)
Deposit Type Gold-silver skarn
Property Size Approximately 675,000 acres (273,000 hectares) under the Tetlin Lease
Host Rock / Age Calc-silicate skarn developed in metasedimentary host rocks
Main Economic Elements Gold, with silver credits
Mineral Resource / Reserve Proven and Probable reserves of 2.9 Mt at 6.8 g/t Au and 11.4 g/t Ag, containing 634,000 oz Au and 1.26 Moz Ag on a 100% basis (effective December 31, 2025; Contango's 30% attributable share is 190,000 oz Au), per the Company's 2025 Form 10-K; 1.3 Moz Measured and Indicated gold at 4 g/t Au and 14 g/t Ag per the SK-1300 Feasibility Study Technical Report (May 2023); see both documents for full reserve and resource detail
Mine Method Open pit
Access / Infrastructure Alaska Highway via 15-kilometer road; ore hauled to the Fort Knox milling facility, an existing permitted processing facility

Tenure

Ownership & Agreements

Peak Gold Joint Venture. Contango holds a 30% interest in Manh Choh through the Peak Gold Joint Venture. Kinross Gold, one of the world’s leading senior gold producers, holds the remaining 70% and operates the mine. The JV structure gives Contango exposure to producing ounces without operational or construction risk, and JV cash distributions flow directly to Contango’s treasury.

Tetlin Lease and the Native Village of Tetlin. The project sits on lands leased from the Alaskan Native Village of Tetlin, whose members benefit from royalties, employment, and community investment tied to the mine. The relationship with the Tetlin Tribe has been foundational to the project since exploration began, and community partnership remains central to how the mine operates.

Manh Choh winter 2025

Geology & Mineralization

The Peak deposit is a gold-silver skarn hosted in metasedimentary rocks in the northern Tetlin Hills. Mineralization is well defined by 55,321 meters (181,500 feet) of drilling across 300 drill holes, including 30,989 individual assay intervals, supporting one of the highest-grade open pit gold operations in the world.

Regional geology, deposit detail, and significant drill intercepts are available in the linked technical documents below.

Project History

Contango ORE, Inc. entered the Tetlin Lease in 2008 and discovered the Peak deposit through systematic exploration. The Peak Gold Joint Venture was formed in 2015 to advance the project, and Kinross acquired its 70% operating interest in 2020. A construction decision followed, and the mine achieved first gold production in July 2024. Contango Silver & Gold now holds the 30% JV interest as the cornerstone producing asset in its portfolio.

Production

Manh Choh is in steady-state production. Ore is mined from the high-grade open pit and hauled to an existing permitted facility for processing, with Contango’s 30% share averaging approximately 60,000 ounces of gold per year over the life of mine.

The mine’s cash flow is what makes the rest of the Contango strategy possible. JV distributions fund exploration and development across the Alaska gold hub and the Kitsault Valley silver hub without shareholder dilution, and in 2026 the Company converted its remaining hedge contracts into debt, restoring full gold price exposure on future production.

Quick Links

Image Gallery

Winter drill program at the Peak Gold deposit, December 2020
Winter Drill Program – Peak Gold Deposit, December 2020
Tetlin Village Community Update
Tetlin Village Community Update
Chief Michael Sam and Curt Freeman
Chief Michael Sam and Curt Freeman
Technical Review of Peak Gold Deposit core
Technical Review of Peak Gold Deposit core
Local Tetlin geotechnicians hard at work
Local Tetlin geotechnicians hard at work
Peak Gold Project Field Crew, Summer 2013
Peak Gold Project Field Crew, Summer 2013
Curt Freeman with Tetlin child during a Community Update
Curt Freeman with Tetlin child during a Community Update
Drilling at the Peak Gold Deposit
Drilling at the Peak Gold Deposit
Peak Gold Deposit core in storage
Peak Gold Deposit core in storage
Peak Gold deposit base of operations off the Alaska Highway near Tok, Alaska
Peak Gold Deposit base of operations off of the Alaska Highway, Tok Alaska
Water well sampling at Peak Gold Deposit in winter
Water well sampling at Peak Gold Deposit in winter
Working on the Peak Gold Deposit core
Working on the Peak Gold Deposit core
Peak Gold Project drill site
Peak Gold Project drill site
Peak Gold Project summer core shack
Peak Gold Project summer core shack
Drill core coming out of the tube at the Peak Gold Deposit
Drill core coming out of the tube at the Peak Gold Deposit
Trench Sampling at the Peak Gold Deposit
Trench Sampling at the Peak Gold Deposit
Meteorological station data collection, Winter 2020
Meteorological station data collection, Winter 2020
Soil Auger crew at the Peak Gold Deposit
Soil Auger crew at the Peak Gold Deposit
Local Tetlin Soil Auger crew at the Peak Gold Deposit
Local Tetlin Soil Auger crew at the Peak Gold Deposit
Festivities after Tetlin Cleanup Day
Festivities after Tetlin Cleanup Day
Discussions with locals after Tetlin Cleanup Day
Discussions with locals after Tetlin Cleanup Day
Chief Danny with his granddaughter, who signed the original agreement with Contango Ore
Chief Danny with granddaughter – signed original agreement with Contango Ore Inc.
Tetlin Council, Kinross Fort Knox representatives and Rick Van Nieuwenhuyse
Tetlin Council, Fort Knox Kinross representatives, and Rick Van Nieuwenhuyse Contango Ore President & CEO appropriately social distanced during signing ceremony, September 2020