COS MiningCornerstone Space Mining
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Cornerstone Space Mining

Space mining starts beneath our feet.

To mine metals on the Moon or on an asteroid one day, we first have to learn to extract them differently on Earth: with less water, less gravity and no operator on site. COS Mining develops these methods on strategic resources, starting with copper, the 3T metals and ferro-niobium.

Explore our metals Contact us
  • 29CuCopper
  • 50SnTin
  • 73TaTantalum
  • 74WTungsten
  • 41FeNbFerro-Nb
∞Why space

Why the future of mining is in space.

Vast resources are waiting beyond Earth. Reaching them means solving problems that no one has solved yet.

Opportunities

Resources278 km

Psyche, an asteroid made mostly of metal, is 278 km long. A NASA probe will reach it in 2029.

Demand×6

The energy sector's need for critical minerals could grow up to sixfold by 2040.

Space economy$1.8 tn

The expected value of the global space economy in 2035, nearly three times its 2023 level.

Challenges

Cost of access≈ $3,000/kg

The price of sending one kilogram to low Earth orbit, even on the cheapest launchers. Every machine must be light and durable.

Microgravity≈ 0 g

On a small asteroid there is no gravity and no water, so Earth's sorting and washing methods stop working.

Distance10 to 30 min

The radio delay to the asteroid belt. Real-time control is impossible, so machines will have to run on their own.

Cu · 3T · FeNbStrategic metals

The metals that build space.

We work on copper, on the 3T metals (tin, tantalum and tungsten, found in cassiterite, coltan and wolframite) and on ferro-niobium. They are essential to today's industry and just as essential to the rockets, satellites and bases of tomorrow.

Swipe · 5 metals →

Base metal
29CuCopper

Copper

Chalcopyrite CuFeS₂

Element
Cu · Z = 29
Melting
1,085 °C
Density
4.1 to 4.3 g/cm³ (ore)

Power grids, motors and electronics: the metal of electrification.

Wiring, motors and cooled combustion chambers: copper is everywhere on board.

3T · Tin
50SnTin

Cassiterite

SnO₂ · tin ore

Element
Sn · Z = 50
Melting
232 °C (tin)
Density
6.8 to 7.1 g/cm³ (ore)

The main tin ore: electronic solder, tinplate and alloys.

Tin holds together the solder joints of all onboard electronics.

3T · Tantalum
73TaTantalum

Coltan

(Fe,Mn)(Nb,Ta)₂O₆

Element
Ta · Z = 73
Melting
3,017 °C
Density
5.2 to 8.0 g/cm³ (ore)

The source of tantalum: capacitors, turbine alloys and medical implants.

Its compact, reliable capacitors equip the electronics of satellites and probes.

3T · Tungsten
74WTungsten

Wolframite

(Fe,Mn)WO₄

Element
W · Z = 74
Melting
3,422 °C
Density
7.0 to 7.5 g/cm³ (ore)

The main tungsten ore: cemented carbide tools, high-temperature alloys and radiation shielding.

Dense and heat resistant, tungsten is used to shield electronics from radiation and for parts exposed to extreme heat.

Steel alloy
41FeNbFerro-niobium

Ferro-niobium

Fe-Nb alloy · niobium product

Element
Nb · Z = 41
Niobium
≈ 65 % (standard grade)
Main use
Micro-alloyed steels

The main form in which niobium is sold. A few hundred grams per tonne make high-strength steels for pipelines, bridges and cars.

Refined further, niobium becomes the C-103 alloy used in many rocket engine nozzles.

4Co-founders

The people behind COS Mining.

Four co-founders, combining a base in Paris with long field experience in the DRC and Central Africa.

Co-founder

Georges WANG

Co-founder

Douri JEONG

Co-founder

WANG Bin

20 years of experience in the mining sector in the Democratic Republic of the Congo and across Central Africa.

Co-founder

Alibaba ABEDI

Has worked for major international mining companies, including Banro Corporation and Loncor Gold Inc.

↑Our vision

Our vision.

Our project moves forward in stages. Each stage builds on the one before: everything starts on Earth, and every step brings us closer to space.

  1. Step 1On EarthIn progress
  2. Step 2Testing
  3. Step 3Orbit
  4. Step 4Moon & asteroids
  1. 0 mOn Earth
    Step 1

    We start here

    An operating mining company on Earth, focused on strategic metals. This is our foundation and our school: here we build our know-how, to the same standards we will need up there.

    • Rigor
    • Traceability
    • Respect for host regions
    • Long-term vision
  2. 8 kmParabolic flight
    Step 2

    Preparing the leap

    Research, partnerships with space companies and reduced-gravity tests to adapt our processes.

  3. 400 kmLow Earth orbit
    Step 3

    A first demonstrator

    Test an extraction process in real microgravity, controlled from the ground.

  4. 384,400 kmMoon and asteroids
    Step 4 · Horizon

    Mining space resources

    Produce on the Moon to supply bases on site, then mine metallic asteroids rich in iron, nickel and platinum-group metals.

Private Circle · For our investors

Follow our operations from the inside.

Photos and videos of our ongoing projects, from the lab to the field, shared exclusively with Private Circle members.

  • IBehind the scenes in the field
  • IIEarly access to project updates
  • IIIDirect exchanges with the founders
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Contact

Mining partners, space companies and investors: write to us.

contact@cosmining.com
  • Mining partnersCollaboration on copper, the 3T metals and ferro-niobium.
  • SpaceResearch, testing and future missions.