Inside the Permafrost: 9States' -50°C Modular Camp for a Siberian Gold Mine, 300 km from the Arctic Circle

Project Background

Russia is the world's third-largest gold producer, with an estimated output of approximately 330 tonnes in 2025, ranking behind China and Australia. The country's gold reserves are predominantly concentrated in Siberia and the Far East, with the Krasnoyarsk Krai, Magadan Oblast, Chukotka Autonomous Okrug, and the Sakha Republic being the primary gold-producing regions. The Russian government has been actively promoting mining development in the Far East and Arctic regions in recent years, introducing a series of tax incentive policies to attract investment, and gold mining activity across Siberia continues to intensify.

However, most of Siberia's gold mines are located in permafrost zones near the Arctic Circle, with no towns or infrastructure within tens or even hundreds of kilometers. Winters in these regions last 7 to 8 months, with extreme minimum temperatures reaching as low as -50°C, and more than 200 days of the year are covered in snow. The core challenge facing mine operators is not ore grade — it is how to house people and keep them alive in these extreme environments.

A mining company operating a gold mine in the northern Krasnoyarsk Krai region of Siberia — needing approximately 500 additional workers for a deep-ore expansion project — contacted 9States to build a 500-bed modular worker camp.

Project Requirements

• Capacity: 500 beds (expandable to 700)
• Total area: Approximately 6,500 m²
• Location: Northern Krasnoyarsk Krai, Siberia — approximately 64°N latitude, about 300 km south of the Arctic Circle
• Construction timeline: 6 months
• Climate: Subarctic continental — winter (October to April) average temperatures from -25°C to -40°C, extreme lows reaching -50°C; summer (June to August) averages 10°C to 18°C; annual snowfall approximately 400 to 600 mm; permafrost depths reaching hundreds of meters
• Facilities: Accommodation units (2-person and 4-person rooms with private bathrooms and heating), 150-seat canteen with preparation kitchen, medical room, office area, laundry room, sauna, storage warehouse, diesel generator room
• Logistics: Nearest ports — Murmansk or Dikson; nearest city — Norilsk (approximately 250 km away)

The Challenge of Traditional Construction

Using conventional construction methods in the Siberian permafrost zone presents nearly insurmountable obstacles:

Permafrost is the single biggest technical challenge. When cast-in-place concrete foundations are used, the heat of hydration from the curing cement causes the frozen ground to thaw, leading to uneven settlement and structural cracking in the first thaw season. Brick-and-mortar construction is completely impossible in winter — concrete cannot cure properly below -30°C, and masonry mortar freezes before it sets. The annual "construction window" is only about three months (June to August). Traditional methods would require at least two construction seasons — approximately 18 months — to complete a camp of this scale, far exceeding the mine's production timeline.

Additionally, all building materials must be transported via the long Northern Sea Route or the Trans-Siberian Railway, followed by road transport, resulting in long lead times and extremely high costs. Construction workers require specialized cold-weather training and substantial premium pay.

9States' Solution — Flat-Pack Extreme Cold Modular Camp

9States provided a 500-bed flat-pack modular camp solution specifically engineered for the extreme low-temperature conditions of the Siberian permafrost zone.

Camp Layout

The camp is divided into three functional zones. The accommodation area consists of 130 modular dormitory rooms with a mix of 2-person and 4-person configurations, each with a private bathroom and heating system. The public service area includes a 150-seat canteen (with preparation kitchen), medical room, laundry room, and sauna. The administration area contains 12 offices, one meeting room, and a communications room. All buildings are connected by fully enclosed heated walkways — not an optional upgrade but an absolute necessity in -40°C conditions.

Extreme Cold Climate Adaptations

• Full-dimension high-performance insulation: Walls use 100 mm polyurethane sandwich panels (thermal conductivity ≤0.024 W/(m·K)), with roof and floor slabs also upgraded to 100 mm of insulation, forming a complete six-sided insulated envelope. Insulation performance is more than three times that of conventional 50 mm EPS panels, easily maintaining interior temperatures even with a 50°C indoor-outdoor temperature differential.
• Cold-start heating system: Each module is equipped with low-temperature-rated electric heaters that start reliably even at -50°C outdoor temperatures. The camp uses a centralized power and heating scheme with backup diesel generators.
• Frost-resistant foundation system: A 50 mm thick rock wool insulation strip is installed beneath each unit, elevating it 40 cm above ground to isolate the module structure from frost heave forces. The main frame uses 3.0 mm thick-walled square steel tubing with specialized anti-frost-cracking treatment at weld points, finished with low-temperature-resistant anti-corrosion paint.
• Triple-glazed windows: All doors and windows use thermal-break aluminum frames with triple-glazed laminated glass, achieving an overall U-value below 1.5 W/(m²·K). Hardware is cold-weather-rated to ensure normal operation at extreme low temperatures.
• Steep roof pitch: Roof slope exceeds 30 degrees to ensure natural snow shedding. Roof load design meets Siberia's 2.0 kN/m² snow load standard.
• Freeze-proof water and drainage: All exposed water pipes are fitted with insulation sleeves and electric heat tracing, wrapped in an aluminum foil waterproof layer. Drainage pipes are sloped to prevent water stagnation. The septic tank is buried below the permafrost table with additional insulation.
• Vapor barrier layer: Interior walls and ceiling include a vapor barrier layer to prevent severe condensation and ice buildup caused by the extreme temperature differential between indoors and outdoors.
• Heated walkway system: All main buildings are connected by elevated enclosed heated walkways. Workers can move between dormitories, the canteen, and offices without exposing themselves to outdoor conditions in winter — a critical human-centric design feature for extreme-cold mining camps.

Supply Chain and Logistics

The modules were manufactured at 9States' Shanghai factory in flat-pack form, each folding to approximately 30 cm thick for shipping in standard 40-foot containers.

Given the inland location in central Siberia, the logistics plan uses two complementary routes. The primary route departs from Shanghai, crossing the East China Sea, Yellow Sea, and Sea of Japan to reach the Russian Far East port of Vladivostok — a sea journey of approximately 1,800 km taking about 5 days. From Vladivostok, containers transfer to the Trans-Siberian Railway, traveling westward through Khabarovsk to Krasnoyarsk — a rail distance of approximately 4,500 km taking 8 to 10 days. At Krasnoyarsk, cargo is transferred to cold-weather-rated special trucks for an 800 km northward drive on federal highways to the mine site. The final 150 km of mine road requires all-terrain trucks operating on winter ice and snow surfaces.

A secondary route via the Northern Sea Route through the port of Murmansk is available primarily during the summer navigation window, covering approximately 13,000 km by sea and suitable for very large volume shipments.

Each flat-pack module can be assembled by a 4-person team in approximately 40 to 50 minutes (adjusted for workers wearing heavy cold-weather protective gear), using only hand tools with no heavy machinery required. 9States provided on-site heated mobile work shelters for tool preheating and worker rotation, with a schedule of 45 minutes of work followed by 15 minutes of rest.

Project Parameters

Client Feedback

"Accommodation at the Siberian mine site has been one of the biggest headaches in this entire project. We've tried converted train carriages and temporary tents in the past, but neither could meet the needs of long-term operations. 9States' extreme-cold flat-pack camp solution solved our core pain points — the modules were installed and put into use immediately at -40°C, and the insulation performance far exceeded expectations. The heated walkway system is especially critical in winter — workers can move between buildings without putting on all their cold-weather gear. We are already planning to add 200 more beds in the next expansion phase." — Site Operations Manager

Why Choose 9States for Siberian Extreme-Cold Mining Camp Projects?

9States has accumulated extensive practical experience in high-latitude and extreme-cold camp construction worldwide. Our extreme-cold flat-pack modular series is specifically designed for the Siberian, Arctic, and subarctic mining regions:

• Flat-pack design: Saves over 50% on shipping costs, flexible for rail and road transport constraints
• Extreme-cold climate adaptation: 100 mm full-envelope insulation, triple-glazed windows, freeze-proof plumbing, wind-and-snow-resistant structure
• Permafrost-ready foundation: Elevated base with thermal isolation layer to accommodate frost heave
• Rapid installation: Complete assembly with hand tools, no heavy equipment needed
• Heated walkway system: Ensures worker convenience and safety in extreme cold
• Modular standard system: 200 modules can be flexibly configured, deployed in phases according to mine expansion schedules
• 20-year design life for Siberian permafrost zone conditions
• Relocatable: Camp can be dismantled and moved to new mine sites with over 90% reusability rate

For more information on extreme-cold camp construction solutions, visit the 9States website.