The IATA Aviation Carbon Exchange, or ACE, is a centralized marketplace for CORSIA eligible emission units where airlines and other aviation stakeholders can trade CO2 emission reductions for compliance or voluntary offsetting purposes. A secure and easy to use trading environment, ACE offers the highest transparency in terms of price and availability of emissions reductions. Airlines trading on ACE will benefit from IATA Settlement Systems and Clearing House for seamless and risk-free settlement of funds. The exchange is open to all airlines, IATA and non-IATA, and is also accessible to carbon market participants wanting to list emissions reduction that are CORSIA compliant.

The ACE platform is offered in partnership with Xpansiv CBL Holding Group. The roll out of the different trading options will be done in phases. The full integration of CBL Markets’ trading platform and IATAs settlement systems is planned for Q4, 2020. 

On January 30, 2020 — Xpansiv CBL Holding Group (XCHG) and IATA announced a partnership to develop the Aviation Carbon Exchange (ACE), a new and innovative way for airlines to meet their emissions compliance obligations under the Carbon Offset Reduction Scheme for International Aviation (CORSIA). CORSIA addresses the increase in total CO2 emissions from international aviation above 2020 levels.

Powered by CBL Markets, an XCHG company, ACE will serve as a centralized marketplace for CORSIA eligible emission units, providing a secure, intuitive destination for airlines to access real-time data with full price transparency. In Q1 2020, CBL Markets and IATA plan to trial with airlines that want to start offsetting voluntary credits as a pilot phase. The CORSIA eligible emission units will be listed on ACE once ICAO has published those accepted under the scheme. ACE trading will be supported by the well-established IATA Settlement System and Clearing House, offering seamless and risk-free settlement to IATA and non-IATA airlines.

The partnership foresees a phased approach in terms of rolling out the different trading options, with the full integration of CBL Markets’ trading platform and IATAs settlement systems to be expected during the 3rd quarter of 2020.

Access Request & Contact

Airlines and carbon market participants can request access by contacting us at


ACE is open for trading to all airlines and carbon market participants, acting as buyers or sellers.
In particular, ACE will be useful to:

  • IATA and non-IATA member airlines
  • Banks and commodity trading companies
  • Carbon offset broker and retailers
  • Carbon offset project developers
  • Active carbon market participants

All emissions units are being vetted for CORSIA eligibility before units are listed on the exchange.

Airlines and carbon market participants can request access by contacting us at

  • Access: CORSIA-eligible emission units accessible via one dedicated screen
  • Simplicity: Easy-to-use electronic interface, with filter functions and selection by
    • - project type
      - state/region
      - standard, or vintage
      - link to project information
  • Secure Trading: Electronic clearing and minimal settlement time and delivery of products and funds, eliminating counterparty risk
  • Leverage: Trade directly with a wide range of participants (including brokers, intermediaries, project developers) removing the need for ERPAs
  • Increased Liquidity: The exchange provides price transparency and liquidity across multiple compliance markets
  • Connectivity: Electronic interfaces with registries to facilitate seamless trading of:
    1. - American Carbon Reserve (ACR)
      - Climate Action Reserve (CAR)
      - Gold Standard (GS)
      - Verified Carbon Standard (VCS/Verra)
      - UNFCCC Clean Development Mechanism (CDM)
      - EMA
  • Safe & Secure Settlement: Seamless and secure in-fund trading for airlines using the IATA Invoicing and Clearing House system.
  • Marketplace Trading: Possibility to switch between marketplaces, e.g. between dedicated CORSIA-eligible emissions market and other markets that fulfil mandatory offset obligations or voluntary offsetting demand.

Please fill in the webinar form to request a dedicated demo for you and your colleagues. The demo will cover the basic ACE functionalities and explain in detail how the system can help you with your CORSIA offset compliance requirements.