CIX CORSIA X is a global standardised spot contract for Eligible Emissions Units (EEU) under the International Civil Aviation Organisation’s (ICAO) Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA).
Demand for CORSIA-eligible credits is projected to surge, with the International Air Transport Association (IATA) forecasting up to 162 million tonnes by 2026 as airline operators approach the first compliance deadline.
The upcoming ‘CIX CORSIA Phase 1 X – Global Market’ (CIX CP1X-GM) is expected to be the first contract in the market to accept eligible carbon credits issued by all fully approved ICAO registries for the 2024-2026 compliance period (first phase). This will unlock new opportunities for airlines and other market participants to access International Transferrable Mitigation Outcomes (ITMO) units at scale.
Only credits explicitly labelled as CORSIA-eligible by ICAO-approved registries will qualify for delivery into the contract.
| Benchmark series name | CIX CORSIA Phase 1 X – Global Market |
| Contracts code | CP1X-GM |
| CIX assessment codes | CP00002 |
| Market scope | All eligible credits, per eligibility criteria defined by the ICAO Council for CORSIA 2024-2026 compliance period (first phase), as captured within the ICAO document “CORSIA Eligible Emissions Units” |
| Underlying tradeable instrument | CP1X-GM standard contract |
| Benchmark vintage | Anchored vintage contract, v21-26 |
| Publishing calendar | Singapore |
| Pricing session | Weekly, Wednesday, 17:00 – 17:30 (GMT+08:00) |
| Benchmark methodology | Refer here for details |
| Benchmark delivery | Published in CIX Carbon Daily the day after each pricing session |
Why CORSIA
Aviation contributes approximately 2% of global energy-related emissions, placing airlines under increasing regulatory, consumer and investor pressure to accelerate decarbonisation.
Given that aviation remains a hard-to-abate sector, with limited commercially and technologically viable decarbonisation pathways in the near term, the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) serves as a crucial complementary tool. CORSIA is a global market-based mechanism designed to address the environmental impacts of international air travel. It encourages airlines to measure, reduce and offset their greenhouse gas (GHG) emissions, providing greater transparency and accountability in the sector’s sustainability progress.
Under CORSIA, participating airlines must offset any emissions growth beyond their 2019 baseline by purchasing eligible carbon credits. This approach offers airlines a practical route to manage unavoidable emissions, comply with international climate targets and avoid regulatory penalties. For corporate buyers and intermediaries, CORSIA can set a benchmark for high-integrity carbon credits, influencing procurement strategies across sectors.
Early engagement with CORSIA doesn’t just ensure compliance, it positions organisations as proactive leaders in global sustainability.
get started
Ready to take your next step on CORSIA? Download our buyer’s guide and tell us about your needs.
With compliance cycles running through 2035 and only six eligible registries currently approved to supply emissions units, understanding CORSIA’s requirements is crucial for market participants.
Tell us about your needs, and we’ll help you find the right solutions.
CORSIA Interest Form
"*" indicates required fields
Featured articles
Clearing the Skies: Decoding risks and uncertainty in the CORSIA market
As international aviation faces mounting pressure to curb emissions, compliance with the Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) has become both an operational necessity and a reputational imperative. At a recent Climate Impact X (CIX) webinar, industry experts highlighted a critical window of opportunity—and urgency—for airlines, aviation stakeholders and others to secure…
CORSIA explained
The Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) is a global market-based mechanism aimed at addressing the growing…
Explore other standardised contracts
CIX ARR X (CAX)
CAX is a global standard contract comprising nature-based removal credits, capturing price trends within the most liquid segments of the ARR market. Projects are curated based on a consistent points matrix that evaluates both positive and negative criteria, ensuring a tight basket that derisks the buying experience.
CIX Cookstoves X (CCX)
CCX is a set of global standard contracts comprising improved cookstoves projects, capturing price trends from key corners of the market. Contracts are segmented by project location (Least Developed Countries and Developing Countries) and methodology (Gold Standard and Verra), reflecting meaningful market attributes.
CIX Nature X (CNX)
CNX is a global standard spot contract representing a curated delivery basket of large, well-established and globally accepted REDD+ projects. CNX is actively curated based on size, recognition, trading activity and absence of non-standard project characteristics to alleviate market concerns over project delivery risk.