The rapid exhaustion of inventory for Mast Reforestation’s latest carbon removal project underscores a surging corporate appetite for high-integrity, nature-based climate solutions. Seattle-based Mast Reforestation recently confirmed that 100% of the carbon removal credits generated by its landmark biomass burial project in Montana, known as Mast Wood Preserve MT1, were sold within 42 days of their issuance. The sale of all 4,277 credits marks a significant milestone for the company and the broader Voluntary Carbon Market (VCM), signaling that buyers are willing to move quickly to secure credits that offer both immediate climate action and tangible ecological restoration.
The roster of purchasers includes a mix of financial heavyweights and global consulting leaders. Global management consulting firm Bain & Company and Canadian financial institution BMO emerged as key new buyers, joining a cohort of early participants that included the Royal Bank of Canada (RBC), CNaught, and Muir AI. This diverse group of investors was facilitated in part by SE Advisory Services, reflecting a growing trend of corporate sustainability officers seeking diversified portfolios of carbon removal to meet net-zero commitments.
The Mechanics of Biomass Burial and Carbon Storage
At the heart of the MT1 project is an innovative approach to carbon management known as Biomass Carbon Removal and Storage (BiCRS). Specifically, Mast utilizes a technique called biomass burial. In the aftermath of catastrophic wildfires, millions of dead trees—often referred to as "ghost forests"—remain standing or fallen across the landscape. Under traditional forestry practices, these trees are typically "piled and burned" to clear the way for new growth. While efficient for clearing land, burning releases massive quantities of stored carbon dioxide, methane, and particulate matter into the atmosphere, contributing to a feedback loop of warming and further fire risk.
Mast Reforestation’s methodology flips this script. Instead of incineration, the fire-killed timber is harvested and buried in engineered subterranean vaults. By placing the biomass in an anaerobic (oxygen-poor) environment, the natural decomposition process is essentially halted. This prevents the carbon stored within the wood from being released back into the atmosphere for centuries. The MT1 project represents the first instance where this specific BiCRS pathway has been directly linked to financing the full cycle of forest recovery, from debris removal to the planting of new seedlings.
The credits for the Montana project were issued under the Puro.earth registry, a leading platform for engineered carbon removal. The project utilized the Terrestrial Storage of Biomass (TSB) methodology, and notably, the MT1 issuance stands as the largest to date under this specific Puro.earth framework.
Project Chronology and Development Speed
One of the most striking aspects of the Mast Wood Preserve MT1 project is the velocity of its execution. In a sector where carbon projects often take years to move from conception to credit issuance, Mast achieved this cycle in approximately nine months.
The timeline began in mid-2025 with the launch of the Montana project. The site chosen was a 900-acre tract in southern Montana that had been devastated by a severe wildfire in 2021. Between the start of construction and the formal issuance of credits in January 2026, Mast managed the complex logistics of harvesting fire-killed timber, preparing burial sites, and undergoing rigorous third-party verification.
Grant Canary, CEO of Mast Reforestation, emphasized that this speed is a proof of concept for the industry. "The delivery and sell-out timeline shows that durable carbon removal can be delivered in months, not years," Canary stated. He noted that the immediate revenue generated from these sales is not merely profit but is currently being recycled into the ground to fund the actual planting of new trees on the Montana site.
Bridging the Reforestation Funding Gap
The environmental stakes of Mast’s work are high. Across Western North America, the "reforestation backlog"—the gap between land that needs replanting after fires and the resources available to do so—has reached crisis levels. Traditional government funding and private capital often fall short of the billions of dollars required to restore millions of acres of charred forest.
Mast Reforestation, founded in 2016, has positioned itself as a vertically integrated solution to this problem. The company does not just manage carbon credits; it operates a full supply chain that includes seed collection, nurseries for growing climate-adapted seedlings, and professional planting crews. By using carbon credits as a financing mechanism, Mast can provide reforestation services to landowners at little to no upfront cost, incentivizing the restoration of private and public lands that might otherwise remain barren for decades.
The MT1 project serves as a pilot for this integrated model. The 900 acres in Montana are now undergoing active restoration, with planting activities already underway. This dual benefit—removing carbon via burial and sequestering future carbon via new growth—is what attracts high-profile buyers like Bain & Company.
Corporate Strategy and Market Integrity
The participation of firms like Bain & Company and BMO highlights a shift in corporate sustainability strategies. As scrutiny over "avoided deforestation" credits (REDD+) has increased, many corporations are pivoting toward "carbon removal" (CDR). Removal projects are viewed as having higher integrity because they physically extract CO2 from the atmosphere or prevent its release through durable storage.
Sam Israelit, Partner and Chief Sustainability Officer at Bain & Company, noted that the MT1 project was selected for its combination of "durable carbon removal with meaningful post-wildfire recovery." This sentiment reflects a broader market demand for "co-benefits"—projects that provide not just carbon sequestration but also biodiversity enhancement, watershed protection, and local economic support.
For financial institutions like BMO and RBC, supporting these projects also aligns with broader ESG (Environmental, Social, and Governance) mandates. By investing in domestic (U.S. and Canadian) projects, these banks are supporting local ecosystem resilience while hedging against the rising costs of carbon in a decarbonizing global economy.
Technical Data and Future Scaling
The success of the 4,277-credit pilot is only the beginning of Mast’s scaling ambitions. The company has announced plans to complete a second, larger project in 2026, with credit issuance expected in 2027. By 2030, Mast aims to scale its biomass burial and reforestation operations to remove 150,000 tons of carbon annually.
To reach these goals, the company will need to navigate several challenges:
- Supply Chain Logistics: Expanding seed collection and nursery capacity to ensure a steady supply of native, resilient seedlings.
- Regulatory Frameworks: Working with state and federal agencies to streamline permits for biomass burial on public lands.
- Verification Standards: Continuing to work with registries like Puro.earth to refine the TSB methodology, ensuring that long-term monitoring of burial sites remains robust.
The data from MT1 provides a strong foundation. The project demonstrated that BiCRS can be deployed at a cost-effective scale while meeting the rigorous "additionality" requirements of modern carbon markets—meaning the reforestation and carbon storage would not have happened without the financial incentive provided by the credit sales.
Broader Implications for the Climate Tech Sector
The Mast Reforestation sell-out is a bellwether for the climate tech and carbon removal industries. It proves that there is a "fast track" for high-quality projects that combine technological innovation with ecological necessity. As wildfires continue to increase in frequency and intensity due to climate change, the need for rapid-response restoration becomes more urgent.
Furthermore, the project highlights the evolution of the "Biomass Carbon Removal and Storage" category. While much of the focus in the CDR world has been on Direct Air Capture (DAC), nature-based BiCRS solutions like Mast’s offer a more immediate and often more cost-effective way to achieve durable storage. By utilizing the "technology" already present in trees—their ability to capture carbon through photosynthesis—and adding a mechanical burial step to ensure permanence, Mast has created a hybrid model that appeals to both tech-optimists and conservationists.
As the revenue from the MT1 sell-out flows back into the Montana soil, the project stands as a testament to a new era of environmental finance. It is an era where the destruction caused by wildfires is not just a tragedy to be mourned, but a catalyst for a new economy centered on restoration, resilience, and the permanent removal of atmospheric carbon. With more projects on the horizon for 2026 and beyond, Mast Reforestation is setting a template for how the private sector can bridge the gap between climate goals and on-the-ground reality.