Finnish cryogenic technology company Bluefors has reached a milestone agreement with American space resources company Interlene to purchase up to 10000 liters of lunar helium-3 annually from 2028 to 2037 for its quantum cryogenic system. This agreement is not just a simple commercial contract, but also marks the beginning of a new era in the space economy and provides a key risk mitigation mechanism for the thriving quantum computing industry. This transaction marks the largest purchase of extraterrestrial natural resources to date, transforming lunar mining from a science fiction concept into a commercially viable practical project.
Although the road ahead is not without challenges, including technical difficulties in large-scale mining and ongoing questioning from institutions such as the United States Geological Survey (USGS), the combination of high-value markets, validated business models, and legal frameworks such as the 2015 Commercial Space Launch Competitiveness Act and the Artemis Agreement in the United States indicate that this agreement is opening up a new geopolitical and economic frontier.

1. Fundamental Science of Rare Isotopes
1.1. Helium-3: Quantum Anomaly
Helium-3 is a stable and lighter helium isotope, whose nucleus consists of two protons and one neutron, in contrast to helium-4, which contains two protons and two neutrons. Although there is a difference in neutrons, their physical properties are completely different. The boiling point of pure helium-3 gas is 3.19 K, lower than helium-4's 4.23 K; its critical point is also lower, at 3.35 K, while helium-4 is 5.2 K. At the boiling point, the density of helium-3 is less than half of helium-4.  
However, the difference in value of this material is not its quality or boiling point, but its unique quantum state. The total spin of the nucleus of helium-4 (two protons and two neutrons) is zero, making it a boson. Bosons can occupy the same quantum state, making helium-4 a frictionless' superfluid 'below 2.17 K, exhibiting peculiar quantum properties. The total spin of helium-3's nucleus (two protons and one neutron) is 1/2, making it a type of fermion. Fermions must follow the Pauli exclusion principle, which states that two fermions cannot occupy the same quantum state. However, at extremely low temperatures, helium-3 atoms can form pairing pairs similar to Cooper pairs in superconductors, making their overall behavior similar to bosons, thus transforming into superfluids at lower temperatures of 2.5 millikelvin (mK). This unique fermionic property is the fundamental principle behind the dilution refrigeration process, which utilizes the quantum mechanical interaction between two isotopes to achieve temperatures close to zero degrees. Without the fermion behavior of helium-3, the physics of dilution refrigeration as we know it would not be possible to achieve. It is precisely this deep-seated physical property, rather than its simple rarity, that endows it with enormous value in the field of quantum low temperature.  
1.2. Scarcity and supply bottlenecks on Earth
On Earth, the content of helium-3 is negligible, accounting for approximately 0.0001% of the terrestrial helium reserves. At present, the main source of helium-3 worldwide is the beta decay of tritium, which is a byproduct of nuclear reactors and weapons programs. The inventory of helium-3 in the United States is measured in kilograms, with an estimated global annual production of 22000 to 30000 liters.  
The dependence on tritium decay makes the supply chain of helium-3 naturally fragile and highly sensitive geographically. Tritium, as a controlled material in nuclear weapons, directly links the supply of this critical material for civilian technology to the industrial system. Its supply cannot be expanded and is susceptible to policy changes. For example, in 2008, the unexpected decrease in Russia's export volume caused a supply shock to the market. This economic and instability makes it impossible for supply chains on Earth to meet the demands of industries that require long-term, predictable growth, such as quantum computing. Therefore, the Bluefors Interlane transaction is not only a search for more materials, but also a strategic response to the fundamental fragility of the existing supply chain. 

2. Key catalysts for quantum computing
2.1. Dilution refrigeration machine: an indispensable low-temperature engine
Bluefors' products are considered the 'global benchmark' for temperature cooling systems. These systems utilize a mixture of helium-3 and helium-4, and through a closed-loop dilution process, can lower the temperature to below 10 milliKelvin, which is a few tenths of a degree higher than zero degrees.  
Quantum computers rely on qubits to process information, and qubits are extremely fragile quantum systems. Even small amounts of thermal energy can cause quantum bits to lose their quantum state, leading to errors and decoherence. In order to operate stably and reliably, quantum bits must be cooled to a temperature close to zero degrees. Bluefors' dilution refrigeration unit utilizes the unique properties of helium-3/helium-4 mixtures to provide the critical infrastructure for such extreme low-temperature environments. Therefore, the development of the quantum industry directly relies on a stable supply of helium-3. This causal chain is very clear: the pursuit of stable quantum bits requires a warm environment, which in turn drives the demand for helium-3, making it a "key material" and "unsung hero" for quantum computing.
2.2 Scaling Quantum Operations: The Inevitability of Supply and Demand
Currently, quantum computers have over a thousand qubits, but commercial scale data centers may require millions. This scaling up will result in each computer requiring thousands of liters of helium-3, far exceeding the Earth's current total annual production. The CEO of Bluefors has made it clear that the company will need a "massive" amount of helium-3 in the coming years, and pointed out that the transaction aims to "stabilize the quantum supply chain" and "prepare for a surge in demand".  
This section reveals a positive feedback loop that drives market development. The rapid advancement of quantum computing technology, especially the expansion of the number of quantum bits, is creating unprecedented demand for helium-3. This growing demand provides economic justification for high-risk, high cost projects such as lunar mining for Interlune, making its business case "completely reasonable". In turn, feasible lunar supply reduces the risk of future large-scale quantum projects, thereby encouraging further investment and development in the quantum industry. This symbiotic relationship indicates that a single key resource can serve as a hub connecting and accelerating two completely interdependent technological frontiers.

3. Lunar Supply Chain: Reserves and Mining
3.1. The Moon as a Resource Storage Facility
The Earth's magnetic field can deflect the flow of charged particles from the solar wind, which includes a continuous stream of helium-3. Due to the lack of magnetic field protection, the moon has been bombarded by solar wind for billions of years, and it is estimated that about 1 to 3 million tons of helium-3 have been deposited in the soil (lunar soil) several meters deep on its surface.  
The abundance of helium-3 on the moon is not uniformly distributed. The solar wind injects this isotope into lunar soil minerals. After in-depth analysis of the lunar soil samples brought back by the Apollo mission, it was found that ilmenite, a mineral, is particularly effective in capturing and retaining helium-3, with a retention capacity 100 times higher than other common minerals. This geological discovery, which was noticed in the 1970s, was crucial for Interlune's strategy. By targeting areas rich in ilmenite, the company can significantly increase its helium-3 production rate per ton of monthly soil, thereby alleviating the economic challenges posed by its overall low concentration. This indicates the need for precise geological exploration (as part of the Interlune program's survey tasks) in order to transform "inferred resources" into "proven reserves".  
3.2. Interlune's lunar mining technology plan
The mining operation of the Interlune program involves a proprietary four step process: excavation, sorting, extraction, and separation. The system is designed for fully automated operation, with each excavator capable of excavating up to 100 tons of soil per hour. It uses centrifugal force for sorting and employs a low-power method to extract gas. The company has successfully tested excavators, sorting technology, and even prototypes for separating helium-3 and helium-4 in simulated lunar environments.  
Interlune's description of its mining process is not only a technical detail, but also a direct response to environmental and public relations issues of public concern. The company emphasizes that its process will only make the surface of the moon look like "cultivated fields," thereby alleviating concerns about destructive open-pit mining. Comparing lunar soil to "bubble wrap paper" that needs to be "squeezed" to release gas simplifies the complex extraction process and makes it easier for non professionals to understand. This strategic communication around its mining methods is equally important for reducing project risks as the technology itself.
3.3. Prudent Assessment: Feasibility Challenge
In a 2022 report, the United States Geological Survey (USGS) classified helium-3 as an "inferred unmineable resource" and considered the possibility of converting it into a viable reserve within the next 30 years to be "unknown". The concentration of helium-3 in lunar soil is indeed extremely low, measured in parts per billion (ppb), which means that "tens or even hundreds of tons of lunar soil" need to be processed to produce one gram of helium-3.  
The difference between the conservative assessment of the United States Geological Survey and the successful commercial agreement of Interlune reveals a fundamental shift in the economic feasibility calculation of space mining. Previous studies, such as a 2000 NASA report, have concluded that mining the moon and transporting it back to Earth for consumption is not economically feasible. These studies may mainly be based on lower value markets (such as bulk industrial materials) or large-scale energy markets that are not yet ready to utilize helium-3. However, the price of helium-3 has skyrocketed to $20 million per kilogram, making it one of the most valuable substances on Earth, providing a viable economic foundation for establishing small-scale, high-value supply chains for niche applications such as quantum computing. The value proposition has changed: it is no longer about powering the entire country, but empowering an industry worth trillions of dollars.

4. Lunar Supply Chain: Reserves and Mining
4.1. Business case of lunar mining
Interlune and its CEO Rob Meyerson stated that helium-3 is "the most valuable resource in the universe that proves worth traveling to space and bringing back to Earth. It is estimated to be worth up to $20 million per kilogram, or $2000 to $15000 per liter.  
This business case is based on a direct comparison between search costs and market value. However, this is not a static calculation. A key economic challenge lies in potential market saturation. When Interlene begins delivering thousands of liters of helium-3, global supply will increase, which in the classic supply-demand relationship may lead to a devaluation of resources. This creates a 'zero sum game': the act of successfully mining and delivering products itself may decrease its profitability over time, which has caught the attention of some analysts. For Interlune, the key lies in managing the growth of supply to maintain profitable prices while making it easier for customers to access resources, which is a delicate balance.  
4.2. The application of helium-3 in nuclear fusion: the promise of neutron free fusion
Helium-3 fusion, especially the deuterium helium-3 (D-3He) reaction, is considered the "fuel" for nuclear fusion because it is a neutron free reaction, meaning it produces charged particles instead of high-energy neutrons, resulting in "zero radioactive waste". It is estimated that the reserves on the moon can meet global energy demand for over a century.  
Although the promise of clean fusion is highly attractive, its technological challenges remain enormous. The plasma temperature required for the D-3He reaction is about four times that of the deuterium tritium (D-T) reaction, which is currently the focus of most fusion research. A higher energy demand means that the plasma confinement time of the D-3He reactor needs to be 50 times longer than that of the D-T system, and the energy density needs to be 80 times higher. In addition, even in so-called "neutron free" reactions, inevitable deuterium deuterium (D-D) side reactions still occur, which produce neutrons despite their lower energy levels than fission. This means that the D-3He reactor still requires a certain degree of neutron shielding design, which complicates its claim of "zero waste" and raises questions about its actual advantages over D-T fusion. This indicates that despite the fascinating long-term vision of nuclear fusion, the application of helium-3 in this field is still in its early stages of research, which is in stark contrast to its immediate use in the quantum low-temperature field.  
4.3. Competitive demand: security and medical applications
Helium-3 is a key component of neutron detectors used for homeland security and nuclear security. After the 9/11 attacks, the demand for this purpose surged, leading to a shortage of supply. It is also used in a medical imaging technique called 'hyperpolarized gas MRI' to visualize lung structures in a non-invasive and radiation free manner.  
In the fields of safety and healthcare, the demand for helium-3 is highly inelastic - it is essential and there are few good alternatives. However, the scarcity of Earth's supply has prompted the development of alternative technologies, such as boron-10 and lithium-6 detectors. This indicates that the market will make adjustments in the face of supply shocks, but also demonstrates the enduring value of helium-3, as these alternatives often have trade-offs (such as lower magnetic spin ratio when used for imaging). These competing high-value applications further enhance the overall demand for helium-3 and provide Interlune with a diversified market beyond quantum computing, thereby improving the resilience of its business model.
The Bluefors Interlane agreement is a watershed, and its importance lies not in proving the existence of lunar helium-3, but in demonstrating its commercial value and the feasibility of the supply chain required for mining. This is a story about a niche high-value resource, a visionary company, and a forward thinking customer working together to solve a critical supply problem that poses a bottleneck to globally important technology.
Although there are still high risks associated with this project. Its technical process must be validated on a lunar scale and under real lunar conditions. Its economic model is highly sensitive to mining costs and market price fluctuations. Although its legal framework is constantly evolving, it has not yet gained global consensus.
For investors, policy makers, and industry stakeholders, the focus must shift from questioning the feasibility of lunar mining to understanding how to manage risks and seize opportunities. The achievement of this agreement heralds the beginning of a new era, in which the sources of critical materials are no longer limited to Earth, but have expanded to a wider universe. The lunar helium-3 supply chain may be the beginning of a blueprint for the future, utilizing space resources to unleash the enormous potential of Earth's technology.