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Leading the way in sustainable energy
Permanent non-extraction of thermal coal at recently operational United States mines. Investment-grade carbon credit design.
QH Carbon Ltd is a London-based subsidiary of Quadret Holding. It administers the Coal Transition Integrity Methodology™, operates the credit registry, coordinates independent validation and verification, and provides governance oversight.
The methodology establishes the conditions under which verified emission reductions may be quantified and issued as carbon credits when an eligible US thermal coal mine permanently ceases extraction.
QH Carbon operates a fee-based model. Project participants retain full ownership of all issued credits and are free to sell, retire, or hold them.
The voluntary carbon market exhibits a clear pricing hierarchy based on credit quality. QH-CTIM™ is designed to produce investment-grade credits that command significant premiums over sub-investment-grade supply.
Permanent control across both the mineral-rights layer and the permit/regulatory layer. Successor-binding. 100-year minimum.
Mandatory haircuts for market leakage, uncertainty, and buffer contributions. Fewer units, each rigorously supported.
Designed to achieve BBB or higher credit ratings. Conservative accounting enables premium pricing.
One methodology. One crediting standard. One issuance unit. No pre-issuance tokens or proxy credits.
Full application package. Technical reports, chain-of-title, reserve estimate, additionality evidence.
Independent verifier validates against all methodology requirements.
Dual-layer successor-binding restrictions on the mineral estate and permit layer.
Annual verification. QH-CTIM Units serialised on the registry. 5-year revalidation cycles.
| Credit Rating | Typical VCM Pricing | Integrity Level |
|---|---|---|
| BB and below | $25 – 30 /tCO2e | Sub-investment grade |
| BBB | $35 – 50 /tCO2e | Investment grade |
| A− and above | $50 – 65+ /tCO2e | QH-CTIM™ target |
Conservative mandatory deductions produce credits rated BBB at issuance, upgrading to A− upon achieving Permanent Legal Lock-In.
Annual credit issuance over a validated 15-year baseline with 5-year revalidation cycles. Forward-sale framework enables revenue from year one.
Over 5,000 companies have set net-zero targets. Demand for high-integrity credits is accelerating while supply remains constrained.
The core insight: A methodology that produces fewer credits through conservative deductions creates units that each command a significant quality premium — generating materially higher total revenue than a larger volume of lower-rated credits.
Mine, coal, and legal instruments within the United States
Steam coal intended for combustion
Documented activity within the last three years
Halted, suspended, idled, or care-and-maintenance
Measurable at reserve standard by a Qualified Person
Depleted or permanently abandoned mines
Closures mandated by law or permit failure
Power plant retirements or fuel switching
Rights acquisition without binding non-extraction
Undeveloped greenfield resources
Confidential discussions welcomed under NDA for owners of eligible US thermal coal assets.
Get in TouchThis website and its contents are provided by QH Carbon Ltd (“QH Carbon”), a subsidiary of Quadret Holding, for general informational purposes only. Nothing on this website constitutes an offer, solicitation, invitation, or recommendation to purchase, sell, or otherwise deal in carbon credits, securities, financial instruments, or any other product or service.
The information presented has not been independently verified and is subject to change without notice. QH Carbon makes no representation or warranty, express or implied, as to the accuracy, completeness, reliability, or suitability of any information contained herein.
Carbon credit pricing data reflects general voluntary carbon market conditions and does not constitute a guarantee of future pricing or returns. The voluntary carbon market is subject to significant uncertainty, regulatory change, and market risk.
QH-CTIM™ and Coal Transition Integrity Methodology™ are proprietary methodologies and trademarks of Quadret Holding. No part may be reproduced without prior written consent.
QH Carbon does not provide legal, tax, accounting, or investment advice. Prospective participants should consult independent professional advisors.
QH Carbon Ltd is registered in England and Wales. Registered office: London, United Kingdom.