Top Voluntary Carbon Credit Exchanges and Marketplaces
Carbon credits can be bought through spot exchanges, procurement marketplaces and negotiated over-the-counter transactions. The right route depends on the credits, transaction size, delivery timing and intended use.
This guide compares selected venues by function. It is not a ranking by trading volume, liquidity or credit quality: admission to a platform does not replace project-level due diligence.
Exchange, marketplace or registry: what is the difference?
Spot exchange
Matches purchases and sales of issued credits for prompt settlement. Products may identify a specific project or allow delivery from a defined basket of eligible credits.
Procurement marketplace
Helps buyers select projects, request quotes or purchase credits. Access, contracting and retirement arrangements vary by platform.
Registry
Records credit issuance, serial numbers, transfers and retirement. A registry account is not an exchange listing or a commitment from a buyer.
Futures exchange
Lists standardized contracts for future settlement. Trading involves contract specifications, margin requirements and, for physically delivered contracts, eligible delivery units.
Buying and retiring are separate steps. Our explanation of carbon credit retirement covers how units are taken out of circulation.
Voluntary carbon credit exchanges and spot marketplaces
Use this comparison to shortlist venues, then confirm membership requirements, eligible inventory, executable prices and settlement terms directly. The links lead to official operator information.
| Venue | Format and focus | What to assess |
|---|---|---|
| Xpansiv CBL | Global spot marketplace with order-book trading, auctions, requests for quotes and OTC settlement. | Project-specific inventory versus standardized contract eligibility; registry connections and settlement requirements. |
| Climate Impact X (CIX) | Carbon trading platform bringing together exchange, marketplace and auction functions. | Current platform rules, available contracts and the route for project-specific transactions. |
| ACX / AirCarbon Exchange | Digital exchange for carbon credits and other environmental instruments. | The contracting entity, applicable rulebook and eligibility of the particular instrument. |
| Carbon Trade Exchange (CTX) | Electronic spot exchange for voluntary carbon credits. | Supported standards, available project lots, account charges and transfer or retirement arrangements. |
| HKEX Core Climate | Carbon marketplace operated by HKEX. | Participant onboarding, eligible projects, payment arrangements and access for your jurisdiction. |
| Bursa Carbon Exchange (BCX) | Malaysia-based exchange for carbon credits and renewable energy certificates. | Carbon contract specifications and trading procedures. Renewable energy certificates are a different instrument. |
| JSE Ventures Carbon Market | JSE-linked marketplace using Xpansiv infrastructure for carbon credits and renewable energy certificates. | Membership, eligible supply and registry arrangements for the proposed transaction. |
Procurement platforms and carbon removal infrastructure
Carbonplace
Provides carbon credit trading and management tools, including access to multiple registries, holdings management and retirement workflows. Assess the custody structure, ownership records, fees and reporting available for your account.
ClimateTrade
A marketplace for selecting and purchasing credits from listed projects. Check whether an offer covers issued credits or future delivery, and what the purchase includes in terms of transfer, retirement and documentation.
Puro.earth
A carbon removal standard and registry infrastructure provider associated with CO₂ Removal Certificates (CORCs). Treat it as a route into certified removal supply and its trading ecosystem, rather than assuming the registry itself operates a conventional exchange order book.
Separate voluntary procurement from compliance eligibility
IATA’s Aviation Carbon Exchange (ACE) supports aviation carbon procurement, including CORSIA-eligible emissions units. CORSIA is an international aviation compliance framework; eligibility is not established merely because a credit can be purchased voluntarily. Check the applicable period and unit restrictions against ICAO’s eligible emissions unit requirements.
IDXCarbon serves Indonesia’s carbon market, with separate allowance and offset market structures. Its offset product includes SPE-GRK emissions reduction certificates. Confirm local participation, transfer and intended-use requirements before treating a listing as internationally interchangeable supply.
Carbon futures: check the contract before using the price
CME Group’s voluntary carbon futures include GEO, N-GEO and C-GEO contracts with physical delivery frameworks. ICE’s nature-based carbon credit futures also specify eligible delivery units and vintage ranges.
A futures quotation is not a universal price for carbon credits. Compare eligible methodologies, vintages, delivery terms, current contract availability, traded volume and open interest. A listed product alone does not establish executable liquidity for your transaction.
Basis risk is the risk that your specific credits change in value differently from the contract used to hedge them. Buying a futures position also does not itself retire credits.
How to choose a carbon credit trading venue
- Define the purchase. Specify issued credits or future delivery, reduction or removal, methodology, geography, vintage, quantity and intended use.
- Check the underlying project. Review additionality, quantification, permanence, leakage and safeguards. Use carbon credit ratings alongside project documentation.
- Confirm ownership and settlement. Establish the seller’s authority, registry location, serial numbers, custody model and when payment and title transfer occur.
- Compare total cost and executable depth. Include membership, brokerage, trading, registry, custody, retirement and foreign-exchange charges. Request a quote for the actual quantity and specification.
- Agree the final evidence. Identify the retirement beneficiary, purpose and supporting registry record where retirement is required. Check that the intended claim is supported by the credits and applicable rules.
Sellers can prepare with our guide to the documents carbon credit buyers request before diligence.
When OTC placement or structured offtake makes sense
Over-the-counter (OTC) means the parties negotiate the transaction directly or through an intermediary. It can suit large project-specific lots, confidential negotiations or tailored delivery schedules. Some negotiated trades can still settle through exchange infrastructure.
FG Capital Advisors provides OTC carbon credit placement services, supporting transaction preparation, buyer outreach and commercial coordination within the agreed mandate. A sale still depends on buyer diligence, acceptable documentation and agreed terms.
For unissued credits, forward purchase and structured offtake require explicit treatment of verification, issuance timing, delivery shortfalls, replacement obligations and payment conditions. A spot listing does not provide development finance.
Frequently asked questions
Which voluntary carbon credit exchange is best?
There is no universal best venue. Match the credit specification, transaction size, access requirements, executable liquidity and settlement arrangements to your intended use.
Is a carbon registry the same as an exchange?
No. A registry records issuance, transfers and retirement. An exchange or marketplace facilitates transactions. These functions can be connected without being the same service.
Does an exchange listing guarantee credit quality or a sale?
No. Admission criteria do not replace project-level due diligence, and a listing does not guarantee buyer demand, price or execution.
Does buying a carbon credit automatically retire it?
No. Some purchases include retirement, while others transfer credits into an account. Confirm the service and obtain the relevant registry retirement record when retirement is required.
Can voluntary carbon credits be used for CORSIA?
Only units meeting the applicable ICAO eligibility requirements can be used. Programme approval alone does not mean every credit from that programme qualifies.
Request a Quote for Carbon Credit Placement
Share the project, standard, methodology, registry status, available or expected volume, vintages and delivery timetable. We can scope the preparation, buyer outreach and transaction advisory work your mandate requires.
Request a QuoteThis guide is general information. Venue rules, product availability and eligibility can change; confirm the terms applicable to your transaction with the operator.
