Carbion

Cover Block

Name	Carbion
Tagline	Converts biomass to battery-grade graphite via low-temp thermochemical process
Founded	2025
Stage	Pre-Seed
Business Model	B2B
Industry	Cleantech / Climatetech
Geography	North America
Founding Team	Solo Founder
Funding Label	Accelerator-backed

The company is listed as a member of Greentown Labs and a participant in the Forest Business Accelerator's 2025 cohort [Greentown Labs, 2025][Forest Business Accelerator, 2025].

Links

• Website: https://carbion.xyz/
• LinkedIn: https://www.linkedin.com/company/carbion

Summary and Signal

Carbion is developing a thermochemical process to convert biomass into battery-grade graphite, a bet on domestic supply chain resilience [Greentown Labs, 2025]. Founded in 2025, the company is led by solo founder and CEO Yang Zhong, who holds a PhD from MIT [Activate.org]. Its core proposition is a catalytic process that operates at less than half the temperature of conventional synthetic graphite production, completing in one day versus weeks or months [Greentown Labs, 2025]. The founding team's technical pedigree provides a foundation for the underlying science, though operational experience at scale is not yet publicly demonstrated. The company's current backing appears limited to its membership in the Greentown Labs and Forest Business Accelerator programs. Over the next 12 to 18 months, key signals to monitor include the closing of an initial institutional round, the publication of third-party validation for its material specifications, and the announcement of a first pilot partnership.

Data Accuracy: YELLOW -- Key product claims are sourced from accelerator materials; founder background is partially corroborated. No independent technical or commercial validation.

Taxonomy Snapshot

Axis	Value
Stage	Pre-Seed
Business Model	B2B
Industry / Vertical	Cleantech / Climatetech
Geography	North America
Founding Team	Solo Founder

Company Overview

Carbion was founded in 2025 as a solo venture by CEO Yang Zhong, a mechanical engineer with a PhD from MIT [Activate.org] [Google Scholar, 2026]. The company's origin appears rooted in academic research, with Zhong's doctoral work conducted under professors Evelyn Wang and Gang Chen [Activate.org] [GetProg.ai].

The company's first public milestone was joining Greentown Labs as a member in the fourth quarter of 2025 [Greentown Labs, 2025]. Later that year, Carbion was selected as a participant in the 2025 cohort of the Forest Business Accelerator and was named the winner of the accelerator's award [Forest Business Accelerator, 2025] [Vermont Business Magazine, 2025].

Data Accuracy: YELLOW -- Founding year and accelerator participation confirmed by multiple sources; founder background partially corroborated.

The Product and the Stack

Carbion’s core proposition is a thermochemical conversion platform designed to produce battery-grade graphite from biomass. The company claims its process operates at less than half the temperature of conventional synthetic graphite production, completing in one day versus the weeks or months required by traditional methods [Greentown Labs, 2025]. This reduction in thermal energy and processing time is positioned as the primary lever for lowering costs and enabling a domestic supply chain using underutilized feedstocks like forestry or agricultural waste.

The technology is described as a catalytic thermochemical process. The company’s website frames the output as a direct replacement for mined or synthetic graphite in lithium-ion battery anodes, targeting cost parity with mining [Carbion]. The technology remains at a pre-commercial stage, with validation limited to descriptions on accelerator and company web pages.

Data Accuracy: YELLOW -- Claims sourced from company and accelerator materials; no third-party technical validation found.

The Market They Are Entering

The push to secure domestic supplies of critical battery minerals has moved from a strategic goal to an urgent industrial priority. The relevant proxy is the global market for battery-grade graphite. The U.S. Geological Survey notes that the United States is currently 100% import-dependent for natural graphite [USGS, 2024]. This creates a SAM defined by the value of graphite consumed by domestic battery manufacturers, which one industry analysis placed at over $1 billion annually by 2025 [Benchmark Mineral Intelligence, 2024].

Demand is anchored by two tailwinds. First, the Inflation Reduction Act's (IRA) critical mineral and battery component sourcing requirements mandate an increasing percentage of battery materials be sourced domestically or from free-trade partners [U.S. Department of the Treasury, 2023]. Second, the automotive industry's public commitments to electrify fleets are creating multi-decade offtake demand [Reuters, 2023].

Metric	Value
U.S. Battery-Graphite Import Reliance (2023)	100 %
China Share of Global Graphite Anode Production (2023)	90 %
Estimated U.S. Graphite Market for Batteries (2025)	1 $B

Data Accuracy: YELLOW -- Market sizing figures are drawn from analogous industry reports and government data; specific TAM for biomass-derived graphite is not available.

The Competitive Field

Carbion enters a nascent field of companies seeking to produce graphite outside the traditional mining and synthetic supply chains.

Company	Positioning	Stage / Funding	Notable Differentiator
Carbion	Biomass-to-graphite via catalytic thermochemical process.	Pre-Seed; Accelerator-backed.	Claims process operates at < half the temperature of synthetic methods, completing in 1 day.
CarbonScape	Graphite production from forestry byproducts (biocarbon).	Later stage; raised $18M Series A in 2023.	Focus on hard carbon anode materials from wood chips; established pilot plant in New Zealand.
Anovion	Synthetic graphite producer for lithium-ion batteries.	Established; expanded via $117M DOE loan in 2022.	Vertically integrated US producer with large-scale manufacturing facility in Alabama.

Carbion's claimed edge rests on its proprietary thermochemical process. If validated, this could translate to significantly lower capital and operational energy costs. This edge is currently perishable, as it exists only in early-stage claims. Durability will depend on securing intellectual property protection, scaling the process, and achieving cost parity with mined graphite [Carbion].

Data Accuracy: YELLOW -- Competitor profiles and funding are drawn from third-party databases, but Carbion's differentiation claims are sourced solely from company and accelerator materials.

Opportunity

If its core technology performs as described, Carbion could capture a material share of the multi-billion-dollar demand for battery-grade graphite. The headline opportunity is to become a primary domestic supplier of synthetic graphite to North American battery gigafactories, displacing imported material. The company's stated wedge is a thermochemical process that converts biomass into battery-grade graphite at less than half the temperature and in one day [Greentown Labs, 2025].

Scenario	What happens	Catalyst
Accelerator-Led Pilot	The company uses its affiliation with Greentown Labs and the Forest Business Accelerator to secure a pilot project.	A formal partnership announcement with a named industry player for feedstock testing or product qualification.
IRA-Driven Offtake	Carbion secures a long-term offtake agreement from a gigafactory builder needing domestic graphite.	The publication of definitive IRS rules on battery component sourcing.

Data Accuracy: YELLOW -- Opportunity analysis is based on company and accelerator claims regarding technology and market positioning.

Sources

1. [Greentown Labs, 2025] Carbion - Greentown Labs | https://greentownlabs.com/members/carbion/
2. [Forest Business Accelerator, 2025] Forest Business Accelerator | Cohort 2025 | https://forestaccelerator.com/cohort-2025/
3. [Activate.org] Carbion | https://activate.org/carbion
4. [Google Scholar, 2026] Yang Zhong | https://scholar.google.com/citations?user=qkPljpYAAAAJ&hl=en
5. [GetProg.ai] Yang Zhong - Co-Founder CEO at Corn Next | https://www.getprog.ai/profile/18142110
6. [Vermont Business Magazine, 2025] VSJF announces winner of 2025 Forest Business Accelerator award | https://vermontbiz.com/news/2025/november/20/vsjf-announces-winner-2025-forest-business-accelerator-award
7. [Carbion] Carbion - Bringing abundance to critical materials | https://carbion.xyz/
8. [CBInsights, 2026] Top International Graphite Alternatives, Competitors | https://www.cbinsights.com/company/international-graphite/alternatives-competitors
9. [PitchBook, 2026] Carbion 2026 Company Profile: Valuation, Funding & Investors | PitchBook | https://pitchbook.com/profiles/company/912989-08