Climate Impact X (CIX) Carbon Exchange Singapore
How Singapore Built a Global Carbon Trading Exchange, and What Its 2026 Merger Means
Climate Impact X (CIX) is a Singapore-headquartered global environmental markets exchange, backed by Temasek, DBS, SGX Group, and Standard Chartered, that provides infrastructure for trading voluntary carbon credits and renewable energy certificates, aiming to bring exchange-level transparency and liquidity to a historically fragmented over-the-counter carbon market.
Not financial advice. All figures for educational reference only. Data as at September 2026. Last updated: September 2026.
Key Takeaways
- CIX was launched in 2021 as a joint venture between Temasek, DBS Bank, Singapore Exchange (SGX Group), and Standard Chartered, positioning Singapore as a hub for carbon credit trading.
- CIX operates markets for both voluntary carbon credits and renewable energy certificates (RECs), and has expanded into a broader suite of environmental market products since its 2021 launch.
- In August 2026, CIX announced its intent to merge with Carbonplace, a London-based carbon portfolio management and trading platform, backed by 12 major global financial institutions, to build combined market infrastructure spanning Singapore and London.
- CIX has partnered with independent carbon ratings providers such as BeZero Carbon to integrate credit quality ratings directly into its exchange, aiming to improve transparency around the environmental integrity of traded credits.
- For a Singapore investor or company, CIX represents a channel to buy or sell voluntary carbon credits with more standardised pricing and settlement than the fragmented, broker-intermediated over-the-counter market that has historically dominated global carbon trading.
Table of Contents
What Is Climate Impact X?
How Does It Work in Singapore?
Climate Impact X Example
Advantages
Risks and Limitations
Exchange-Traded Carbon Credits vs Traditional Over-the-Counter Trading
The Bottom Line
Frequently Asked Questions
What Is Climate Impact X?
Carbon credits let a company or individual claim to offset emissions by paying for a verified reduction or removal of greenhouse gases elsewhere, such as a reforestation or renewable energy project. For years, this market operated mostly over-the-counter, through bilateral deals brokered privately, which made pricing opaque and credit quality hard to verify at scale. Climate Impact X was set up in 2021 specifically to address that gap by building exchange infrastructure, akin to a stock exchange, but for carbon credits and renewable energy certificates. Its backers, Temasek, DBS, SGX Group, and Standard Chartered, are all major Singapore-linked financial institutions, reflecting a deliberate national strategy to position Singapore as a regional and global hub for carbon markets, alongside its established roles in commodities and financial services trading. Since launch, CIX has grown beyond simple spot trading of carbon credits to include renewable energy certificates and, per its August 2026 merger announcement with London’s Carbonplace, is now moving toward becoming a combined Singapore-London environmental markets infrastructure provider backed by a dozen major financial institutions.
How Does It Work in Singapore?
CIX operates as a marketplace where sellers of verified carbon credits, typically project developers or credit originators, can list credits for sale, and buyers, typically corporates seeking to meet voluntary net-zero or sustainability commitments, can purchase them through a more standardised, exchange-style process than a private bilateral deal.
A key differentiator CIX has pursued is credit quality transparency. Its partnership with BeZero Carbon integrates independent carbon credit ratings directly into the exchange, similar in spirit to how a credit rating agency rates a bond, so buyers can better assess whether a given credit represents a genuine, durable emissions reduction before purchasing.
The August 2026 announced merger with Carbonplace, a London-based full-service carbon portfolio management and trading platform, is structured to combine the two firms’ complementary capabilities and connect Singapore and London as the two leading hubs bridging Asian and European carbon and environmental markets. The deal is backed by 12 major global financial institutions spanning banks, investors, and market operators.
Climate Impact X Example
A Singapore-headquartered manufacturing company with a public net-zero-by-2050 commitment needs to offset a portion of its residual emissions that it cannot yet eliminate through direct decarbonisation. Instead of negotiating a private, opaque deal with a project developer, its sustainability team accesses CIX to purchase a batch of verified carbon credits from a rated project, using the BeZero Carbon integration to compare credit quality across different available project types, such as a nature-based reforestation project versus a renewable energy project, before settling on a purchase that matches its internal quality and pricing criteria.
Advantages
- Improved price transparency. An exchange-based marketplace gives buyers and sellers of carbon credits a more visible, comparable pricing benchmark than the historically fragmented over-the-counter market, where prices for similar credits could vary widely between private deals.
- Integrated credit quality ratings. The BeZero Carbon partnership means buyers can assess a credit’s environmental integrity through an independent rating framework directly on the exchange, rather than relying solely on the seller’s own claims.
- Positions Singapore as a regional hub. Backing from Temasek, DBS, SGX Group, and Standard Chartered signals a deliberate national push to make Singapore a centre for carbon and environmental markets trading in Asia, which can bring related financial services, jobs, and expertise to the local market.
- Expanding scope through the Carbonplace merger. The planned combination with London’s Carbonplace, backed by 12 major financial institutions, aims to connect Asian and European carbon market infrastructure, potentially deepening liquidity and standardisation across both regions.
Risks and Limitations
- Voluntary carbon market credibility concerns persist industry-wide. The broader voluntary carbon credit market has faced repeated scrutiny over whether some credits represent genuine, additional emissions reductions; an exchange platform improves transparency but does not eliminate underlying project-level integrity risk.
- Still a relatively young and evolving market. CIX launched only in 2021 and continues to evolve its product suite and infrastructure, including the 2026 merger process with Carbonplace, meaning market structure, liquidity, and standards are still maturing compared to established financial exchanges.
- Carbon credit prices can be volatile and policy-sensitive. Demand for voluntary carbon credits is closely tied to corporate sustainability commitments and evolving regulatory frameworks around carbon pricing and disclosure, both of which can shift quickly and affect credit values.
- Not a direct investment vehicle for most retail investors. CIX primarily serves corporates and institutions purchasing or trading carbon credits for compliance or voluntary offsetting purposes; it is not structured as a retail investment product, so individual Singapore investors have limited direct access to it as an asset class.
- Integration risk during the Carbonplace merger process. Combining two separate platforms, exchange rulebooks, and technology systems across Singapore and London carries execution risk during the transition period, and market participants may see temporary changes to how trades are settled or how credit ratings are displayed while the merger is implemented.
Exchange-Traded Carbon Credits vs Traditional Over-the-Counter Trading
CIX’s exchange model differs from the historically dominant private, broker-intermediated way carbon credits have traded globally.
| Feature | CIX Exchange Model | Traditional OTC Trading |
|---|---|---|
| Price discovery | More standardised, exchange-visible pricing | Opaque, negotiated privately deal by deal |
| Credit quality assessment | Integrated third-party ratings (e.g. BeZero Carbon) | Relies on seller disclosure and buyer’s own diligence |
| Settlement | Exchange-mediated, standardised process | Bilateral, terms vary by counterparty |
| Typical participants | Corporates, financial institutions, project developers | Corporates, brokers, project developers |
The Bottom Line
For Singapore’s ambitions as a financial hub, Climate Impact X represents a concrete attempt to bring exchange-grade transparency and infrastructure to the voluntary carbon credit market, backed by some of the country’s largest financial institutions and now expanding through its planned merger with London’s Carbonplace. It is not a retail investment product, but it matters as a signal of how Singapore is positioning itself in the broader environmental markets space that increasingly intersects with corporate sustainability strategy and, indirectly, with the ESG credentials of Singapore-listed companies, including several S-REITs that reference green building certification and sustainability performance in their own investor materials.