Singapore REC & Carbon Credit Trading Platform: A Complete Guide

Why Singapore Is the Carbon Trading Capital of Asia

If you have ever wondered where the cleanest, most credible renewable energy certificates and carbon credits in Asia are bought and sold, the answer keeps pointing back to one city.

Singapore.

In less than a decade, Singapore has gone from being a small island with modest green ambitions to becoming the most active carbon trading hub in Southeast Asia.

Companies across the region, from multinationals with deep sustainability budgets to mid-size firms just beginning their ESG journey, now look to Singapore’s REC and carbon credit trading platforms to fulfill their net-zero commitments.

This guide breaks down everything you need to know about the Singapore REC carbon credit trading platform ecosystem.

You will learn what RECs and carbon credits are, why Singapore built these platforms, which platforms exist, how trading works step by step, what the regulations say, and how your organization can participate.

Whether you are completely new to this space or already exploring where to buy or sell, this guide is for you.

What Are RECs and Carbon Credits? Understanding the Basics

Before we dive into platforms and regulations, let us get clear on two core instruments that power this entire ecosystem.

What Is a Renewable Energy Certificate (REC)?

A Renewable Energy Certificate, or REC, is a market-based instrument that certifies one megawatt-hour (MWh) of electricity was generated from a renewable energy source.

Think of it like this: a solar farm in Thailand generates 10,000 MWh of electricity in a year. For every MWh produced, one REC is issued.

That solar farm can then sell those 10,000 RECs to companies around the world who want to make a verified claim that their electricity consumption is matched by clean energy generation.

The buyer does not receive the actual electricity. They receive the environmental attribute of that electricity.

RECs are also known as Energy Attribute Certificates (EACs).

Depending on the region and standard, they go by different names such as Guarantees of Origin (GOs) in Europe or I-RECs in most of Asia.

In Singapore, the Green Certificate Company is the I-REC(E) issuer, and RECs can be traded through platforms like REDEX, which operates Asia’s leading trading platform for Renewable Energy Certificates.

What Is a Carbon Credit?

A carbon credit represents one tonne of carbon dioxide equivalent (tCO2e) that has been avoided or removed from the atmosphere.

Carbon credits are generated by projects like reforestation, renewable energy development, methane capture from landfills, or clean cooking initiatives.

A verified body checks the project, quantifies the emissions avoided or removed, and issues credits accordingly.

Companies buy carbon credits to offset emissions they cannot yet eliminate from their operations.

How Are RECs and Carbon Credits Different?

RECs specifically address energy consumption. They say: “The electricity you use is matched by renewable energy generated somewhere.”

Carbon credits address overall greenhouse gas emissions. They say: “Emissions you produced have been offset by a verified climate project elsewhere.”

Both instruments are now widely traded in Singapore and play different but complementary roles in a company’s decarbonization strategy.

Why Singapore Built a Carbon and REC Trading Hub

Singapore did not stumble into this role by accident. It was a deliberate national strategy.

Singapore’s Climate Commitments

Singapore has committed to achieving net zero emissions by 2050 and to lowering its national greenhouse gas emissions to around 60 million tonnes of CO2-equivalent by 2030.

Achieving this is not straightforward.

Singapore’s electricity generation still relies heavily on natural gas, accounting for more than 90 percent of its generation mix in recent years.

Given its limited land availability and lack of other large-scale renewable resources, Singapore must be strategic in deploying solar energy while pursuing regional low-carbon imports and market-based carbon mechanisms.

Carbon markets and REC trading are essential tools for Singapore to bridge that gap.

The Singapore Green Plan and Carbon Hub Ambition

In the Singapore Green Plan, a comprehensive environmental action plan announced in February 2021, the government set the goal for Singapore to become a hub for carbon services by 2030.

Singapore is home to more than 70 carbon services and trading firms, leveraging its position as a regional center for professional services, commodity trading, and financial services.

This ecosystem includes lawyers, project developers, financiers, brokers, registries, and exchange platforms all working together to make carbon trading efficient and trustworthy.

The Carbon Pricing Act: The Policy Backbone

The Carbon Pricing Act, enacted by the Singapore Parliament and administered by the National Environment Agency, mandates a carbon tax on greenhouse gas emissions from large emitters, specifically facilities emitting 25,000 tonnes or more of CO2 equivalent annually.

The tax rate was increased to SGD 25 per tonne of CO2 equivalent in 2024, with scheduled increases to SGD 45 in 2026 and 2027, and a projected range of SGD 50 to 80 by 2030.

This escalating carbon price creates strong financial incentives for large emitters to reduce their footprint, invest in low-carbon technologies, and participate in the carbon credit market.

The International Carbon Credit (ICC) Framework: A Game Changer

One of the most significant policy moves Singapore made was the creation of the International Carbon Credit (ICC) Framework in 2022.

What the ICC Framework Allows

Companies may use high quality international carbon credits (ICCs) to offset up to 5% of their taxable emissions from 2024.

This might sound like a small percentage, but given that Singapore’s covered facilities emit tens of millions of tonnes annually, 5% represents a significant volume of credits in absolute terms.

The Eligibility Criteria

Singapore does not allow companies to buy just any carbon credit off the market.

The MSE and NEA set out the Eligibility Criteria under the ICC Framework, which requires ICCs to meet seven internationally recognised principles to demonstrate high environmental integrity: no double-counting, additional, real, quantified and verified, permanent, no net harm, and no leakage.

They must also represent emissions reductions or removals that occurred between 1 January 2021 and 31 December 2030.

The Rollover Provision

Recognizing practical challenges, the government introduced flexibility. The government has observed that there may be a constrained supply of ICCs for emissions year 2024, partly as a result of delays in Article 6 implementation.

Therefore, taxable facilities are allowed to roll over their unutilised ICC offset limit of up to 5% of taxable emissions in 2024 to emissions year 2025.

This pragmatic approach shows Singapore’s commitment to making the framework work in practice, not just on paper.

Singapore’s Article 6 Bilateral Agreements: Building the Supply Pipeline

For the ICC Framework to work, Singapore needs a reliable supply of high-integrity credits. This is where its international diplomacy comes in.

What Is Article 6 of the Paris Agreement?

Article 6 of the Paris Agreement allows countries to cooperate in achieving their climate targets by transferring carbon credits between nations.

The key requirement is that each credit must be “correspondingly adjusted” so it is only counted toward one country’s climate target, preventing double counting.

Singapore’s Bilateral Network

As of October 2025, Singapore has signed Implementation Agreements with ten countries: Papua New Guinea, Ghana, Bhutan, Chile, Peru, Rwanda, Paraguay, Thailand, Vietnam, and Mongolia.

This is just the formal implementation agreements. Singapore’s broader diplomatic outreach goes further.

The city-state has fostered and concluded 28 bilateral agreements under Article 6.2 with governments across Asia, Africa, and South America.

Recent agreements were signed with Malawi, Ethiopia, and Brazil in late 2025.

What These Agreements Enable

The Implementation Agreements set out a legally-binding bilateral framework for the international transfer of correspondingly adjusted high-integrity carbon credits to avoid double counting.

Correspondingly adjusted carbon credits authorised under these Implementation Agreements can be used to offset up to 5% of a company’s carbon tax liabilities under Singapore’s ICC framework from 1 January 2024, subject to meeting the principles under the Eligibility Criteria.

Singapore Buying Credits Directly

Singapore is not just creating a marketplace for others. It is also a direct buyer.

In September 2025, NCCS and the Ministry of Trade and Industry announced that the Singapore Government will contract 2.175 million tonnes worth of high-quality nature-based carbon credits from four projects in Ghana, Peru, and Paraguay.

This signals strong government confidence in the market and helps anchor demand, which benefits the entire ecosystem.

Top Singapore REC and Carbon Credit Trading Platforms

Now let us look at the actual platforms where RECs and carbon credits are bought and sold.

1. Climate Impact X (CIX): The Flagship Carbon and REC Exchange

Climate Impact X, widely known as CIX, is Singapore’s most prominent carbon and REC trading platform.

Background and Ownership

Headquartered in Singapore with offices in London, CIX was born out of Singapore’s Emerging Stronger Taskforce (EST), a public-private initiative to establish the country as a climate services and carbon trading hub.

This brought together shareholders DBS Bank, GenZero (a decarbonisation-focused investment platform founded by Temasek), Singapore Exchange (SGX Group), and Standard Chartered.

In 2024, Japan’s Mizuho Financial Group joined as an investor.

This shareholder structure makes CIX unique. It is backed by major banks, a sovereign wealth fund vehicle, the national stock exchange, and a global bank, giving it extraordinary credibility and financial depth.

What CIX Trades

CIX connects supply and demand for carbon credits and Renewable Energy Certificates (RECs) across diverse markets, empowering customers to make informed, impactful transaction decisions.

It offers Energy Attribute Certificates (EACs) from renewable energy projects verified by internationally recognised standards, and global standard contracts to level up market efficiency, certainty, and liquidity.

Three Key Platforms Within CIX

CIX uses blockchain technology, satellite monitoring, and machine learning to enhance the quality and transparency of transactions.

The exchange operates three platforms: Project Marketplace, Auction, and Exchange.

Project Marketplace: This is where project developers list their carbon projects or REC-generating assets directly. Buyers can review project details, verify credentials, and negotiate deals. It is similar to a specialized B2B marketplace for environmental products.

Auction: CIX runs periodic auctions where large volumes of curated, pre-vetted carbon credits are auctioned to qualified buyers. This mechanism is particularly useful for buyers who want price discovery and guaranteed volume.

Exchange: CIX Exchange is a spot trading platform where standardized carbon credit contracts are traded in real time. CIX has also launched standardized spot contracts for CORSIA-eligible credits, specifically the CP1X-GM contract, which allows trading of CORSIA-eligible credits from all ICAO-fully approved registries.

CIX and RECs: A Growing Focus

Singapore’s Renewable Energy Certificate (REC) landscape has become increasingly important for companies seeking credible, standards-aligned decarbonisation pathways.

CIX facilitates REC trading by connecting global buyers and sellers of Energy Attribute Certificates verified by internationally recognised standards.

CIX has published research specifically addressing Singapore RECs and local supply, acknowledging the growing corporate demand for locally sourced clean energy certificates within Singapore’s regulatory environment.

Real-World Users of CIX

CIX has streamlined carbon credit transactions, making it easier for companies like Blue Water Shipping Singapore to drive meaningful impact with confidence.

CDL, with a long-standing commitment to a low carbon economy, was among the pioneering adopters of CIX’s inaugural curated offerings, having voluntarily neutralised the annual carbon emissions for its corporate office operations since 2009.

2. REDEX: Asia’s Leading REC-Focused Trading Platform

While CIX covers the full spectrum of environmental products, REDEX is specifically focused on Renewable Energy Certificates.

What REDEX Is

REDEX provides innovative technological solutions that enable companies to adopt renewable energy with ease. Headquartered in Singapore, REDEX developed and operates Asia’s leading trading platform for Renewable Energy Certificates.

It offers a one-stop ecosystem for RECs, supporting clients through the full REC lifecycle: asset registration, verification, marketplace, and retirement.

REDEX won the 2023 Emerging Enterprise Sustainability Award in Singapore and has been named one of the top 18 fastest growing companies in Singapore.

REDEX’s Verification Credentials

REDEX has earned the first approved Verification Label under the International Attribute Tracking Standard (I-TRACK), reflecting its commitment to transparency and accuracy in REC trading.

This verification label matters. It means REDEX meets the highest global standards for tracking and verifying renewable energy claims, which is increasingly important as corporate sustainability claims face greater scrutiny from regulators and investors.

Who Uses REDEX

REDEX serves both buyers and sellers.

For buyers, companies can buy RECs to reduce their carbon footprint, demonstrate their commitment to sustainability, and support renewable energy projects.

For sellers, renewable energy producers, including solar farm operators and wind energy developers across Southeast Asia, use REDEX to register their assets, receive RECs, and find buyers.

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3. AirCarbon Exchange (ACX): Singapore’s First International Carbon Exchange

Singapore’s first international carbon credit exchange, AirCarbon Exchange (ACX), was established in 2019 in collaboration with the Singapore Sustainable Energy Association and is subsidised by Enterprise Singapore, a government agency that helps domestic companies grow.

ACX was a pioneer in applying financial exchange architecture to carbon credit trading.

It introduced standardized carbon credit contracts, similar to commodity futures, and used blockchain technology to ensure transparency and reduce the risk of fraud or double counting.

ACX is particularly known for serving aviation-sector buyers, especially under the CORSIA framework, which requires international airlines to offset their carbon emissions.

4. SP Group’s REC Trading Platform

Singapore-based SP Group became the first authorized local issuer of International Renewable Energy Certificates (I-RECs) in the Asia Pacific region.

Companies can now buy or sell green I-RECs on SP Group’s digital REC trading platform.

This independent accreditation by the International REC Standard Foundation authenticates the transactions and assures the consumer of the credibility of each transaction.

SP Group’s involvement adds significant credibility given its status as Singapore’s dominant electricity utility operator.

Its platform is particularly accessible for Singapore-based businesses that already work within SP Group’s energy infrastructure.

5. Other Platforms and Intermediaries

Beyond the major exchanges, Singapore hosts a growing ecosystem of specialized brokers, project developers, and platform operators.

PMCE is one example: PMCE offers comprehensive assistance to help companies streamline the entire REC trading process, from registration to disbursement, overseeing every step of the transaction, negotiating favourable terms and ensuring seamless contract execution while maintaining compliance with industry standards and regulations.

Several global registries also operate in Singapore or serve Singapore-based traders:

• I-REC Standard Foundation: Issues internationally recognized I-RECs used across more than 60 countries.
• APX / Evident: Issues TIGRs (Tradable Instruments for Global Renewables).
• Verra and Gold Standard: Issue verified carbon credits that are eligible under Singapore’s ICC Framework.
• American Carbon Registry (ACR): Companies regulated under Singapore’s Carbon Pricing Act will be allowed to use high-quality international carbon credits issued by ACR and other approved international offset programs, as long as they meet government criteria.

Types of RECs Traded in Singapore

Not all RECs are the same. Here is a breakdown of the main types active in Singapore’s market.

I-REC(E)

The International Renewable Energy Certificate for electricity is the most widely used REC standard in Asia.

I-REC(E) is an internationally recognised certificate that tracks renewable energy generation and consumption in more than 60 countries.

In Singapore, the Green Certificate Company is the I-REC(E) issuer.

I-RECs are particularly popular because they are globally tradeable.

A Singapore company can purchase I-RECs generated by a solar farm in Vietnam, a wind project in Indonesia, or a hydro plant in Laos.

TIGR (Tradable Instrument for Global Renewables)

APX is the issuer for the Tradable Instrument for Global Renewables (TIGR).

TIGRs function similarly to I-RECs but use the APX registry system, which is well established in North America and increasingly active in Asia.

Some corporate buyers specifically prefer TIGRs because of the robustness of the APX tracking infrastructure.

Guarantees of Origin (GOs)

GOs are the standard in Europe. While not widely used for Singapore domestic compliance, some multinational corporations operating in Singapore purchase European GOs to cover their global operations under a unified accounting framework.

Singapore Standard SS 673

For REC claims specifically within Singapore, companies looking to sell RECs to buyers based in Singapore need to ensure their RECs meet the criteria for Singapore Standard SS 673.

SS 673 is the local standard developed by Enterprise Singapore to ensure that REC claims made in the Singapore context meet consistent quality requirements.

Understanding Singapore’s Carbon Credit Market: Compliance vs. Voluntary

Singapore operates two distinct types of carbon credit markets, and understanding the difference is important for anyone looking to participate.

The Compliance Market

The compliance market covers large industrial facilities that are legally required to manage their carbon emissions under the Carbon Pricing Act.

The carbon tax is imposed by the Carbon Pricing Act 2018 and applies to facilities emitting more than 25,000 tCO2e per year.

These facilities pay the carbon tax rate directly (SGD 25 per tonne in 2024-2025, SGD 45 from 2026), and may optionally offset up to 5% of their taxable emissions using eligible international carbon credits.

Key participants in the compliance market include:

• Oil refineries
• Power plants
• Petrochemical facilities
• Large industrial manufacturers

The Voluntary Carbon Market (VCM)

The voluntary carbon market is for companies and organizations that choose to offset their emissions beyond what the law requires.

In the voluntary market, operated by the private sector, carbon credits are purchased outside of mandated purposes to fund climate-related projects and support investments into emerging climate technologies.

The global voluntary carbon market was valued at about US$2 billion in 2024 and could reach US$50 billion by 2030 if demand keeps rising.

Singapore’s platforms, especially CIX, primarily serve the voluntary carbon market.

This is where companies purchase offsets to meet their own net-zero commitments, respond to investor ESG expectations, or fulfill sustainability pledges to customers and partners.

How REC Trading Works in Singapore: Step-by-Step

Let us walk through the complete process, from generation to retirement, for RECs in Singapore.

Step 1: Renewable Energy Generation

A renewable energy producer, such as a solar farm, wind project, or hydro plant, generates electricity.

For every MWh of electricity generated, the producer is entitled to one REC.

For example, if you are a solar energy producer in Singapore, your system generates RECs that can be sold separately from the electricity itself, creating a new way to benefit from solar panels.

Step 2: Asset Registration

The producer registers their renewable energy asset with an approved issuer or registry. In Singapore, this is typically done through:

• Green Certificate Company (GCC) for I-RECs
• APX directly for TIGRs
• REDEX as a one-stop service provider for the full registration process

Once the asset is registered and energy data is verified, RECs are issued and added into the registry system.

Step 3: REC Issuance

After the issuer verifies the energy data and confirms the generation was real and from a qualifying renewable source, RECs are issued into the registry. Each certificate carries a unique identification number and includes attributes such as:

• Vintage year (when the energy was generated)
• Type of renewable technology
• Country and project location
• Registry standard

Step 4: Trading the RECs

Once RECs are issued, the producer can sell them in several ways:

• Directly to a buyer through a bilateral negotiation
• Through a platform like REDEX or CIX
• Through an intermediary or broker

Once the producer has a trading account, they can go ahead and move, trade, and sell their RECs. REC prices vary based on demand and supply.

As of mid-2024, small to medium-size asset owners in Singapore can expect to sell RECs for around SGD 30 to SGD 40 per certificate.

Step 5: REC Retirement

The most important step is often overlooked: retirement.

REC retirement refers to the process of permanently removing a REC from circulation once its environmental benefits have been claimed, to ensure that it is not double-counted.

This step is crucial for maintaining the integrity of sustainability claims and ensuring transparency in environmental reporting.

Once a buyer retires a REC in the registry, they receive a retirement certificate. This document serves as verified proof that their electricity consumption has been matched by an equivalent amount of renewable energy generation.

This retirement certificate is what companies use in sustainability reports, ESG disclosures, and communications to investors.

How Carbon Credit Trading Works in Singapore: Step-by-Step

Step 1: Project Development

A project developer creates a climate project that avoids or removes greenhouse gas emissions. Examples include:

• Avoided deforestation (REDD+) projects in Southeast Asia
• Renewable energy projects in developing countries
• Blue carbon projects protecting mangrove forests
• Methane avoidance at waste facilities

Step 2: Verification and Certification

The project undergoes independent third-party verification against an approved standard such as Verra’s Verified Carbon Standard (VCS) or Gold Standard.

The verifier assesses whether the emission reductions are real, measurable, additional, permanent, and not double counted.

The Singaporean National Environment Agency has appointed BeZero Carbon, Calyx Global, and Sylvera, three of the leading carbon credit rating agencies, to provide independent assessments of carbon credit methodologies and projects.

Step 3: Credit Issuance

Upon successful verification, credits are issued into the relevant registry. One carbon credit represents one tonne of CO2 equivalent avoided or removed.

Step 4: Trading on a Platform

Credits can be listed and traded on CIX, ACX, or through bilateral OTC (over-the-counter) deals directly between buyers and sellers.

On CIX’s Exchange, standardized contracts allow real-time spot trading.

The Project Marketplace allows direct project-to-buyer connections. Auctions bring together large buyer demand with curated credit supply.

Step 5: Surrender or Retirement

For compliance use, Singapore-based taxable facilities surrender eligible ICCs to the National Environment Agency (NEA) to offset up to 5% of their taxable emissions.

For voluntary use, buyers retire the credits in the applicable registry, generating a retirement certificate used in sustainability disclosures.

Who Are the Buyers and Sellers in Singapore’s REC and Carbon Markets?

Buyers

Large Industrial Facilities: Companies covered under Singapore’s Carbon Pricing Act who want to use ICCs to reduce their tax liability.

Multinationals with Net-Zero Targets: Global corporations with sustainability commitments who need to purchase RECs to make credible renewable energy claims for their Singapore operations.

Technology and Financial Firms: Companies like data center operators have pledged to be carbon-neutral in their operations by 2030 and use CIX to make a difference as part of their global ESG strategy.

Real Estate Companies: Property developers like CDL, with a long-standing commitment to a low carbon economy, have been among the pioneering adopters of carbon credit and REC trading in Singapore.

Shipping and Logistics Companies: Shipping firms face increasing pressure from customers and regulations to account for their maritime emissions, making carbon credits and RECs a key tool.

Airlines: International aviation companies use carbon credits to comply with CORSIA, the global offsetting scheme for aviation emissions.

Sellers

Renewable Energy Project Developers: Solar, wind, hydro, and biomass energy developers who generate RECs as a byproduct of clean energy production.

Carbon Project Developers: Organizations running forestry protection, reforestation, methane capture, or clean energy projects in developing countries.

Governments: Singapore signed agreements with countries like Ghana, Peru, and Paraguay, creating structured supply pipelines for Article 6-compliant carbon credits. The governments of these host countries facilitate the supply of authorized credits into the Singapore market.

Singapore RECs: The Local Supply Challenge

One nuance worth understanding is the supply-demand imbalance for locally generated RECs in Singapore.

Singapore’s renewable energy potential is largely limited to rooftop and floating solar. Singapore has set a target of at least 2 GWp of installed solar capacity by 2030.

While meaningful, this is modest compared to the demand from Singapore’s large corporate sector.

This creates an important dynamic: most RECs traded in Singapore are sourced from other countries in the Asia Pacific region, particularly Southeast Asia, South Asia, and East Asia.

CIX has specifically addressed the issue of Singapore RECs, noting that the local supply landscape has become increasingly important for companies seeking credible, standards-aligned decarbonisation pathways, especially as regulatory expectations evolve.

Some companies prefer locally generated RECs to strengthen their claims of supporting Singapore’s energy transition directly.

This geographical preference is something the market is actively working to address through innovative procurement structures and aggregation of smaller local solar assets.

Singapore’s Role in the Global Carbon Market: Bigger Than It Looks

Singapore’s influence in global carbon markets extends far beyond its geographic size.

Financial Infrastructure

Singapore’s financial sector, with its deep capital markets, foreign exchange capabilities, and legal frameworks, makes it the natural home for carbon finance in Asia.

Major global banks, insurance companies, and asset managers are all headquartered here or maintain significant regional operations.

Legal and Regulatory Clarity

Singapore’s legal system is highly respected internationally.

Its English common law tradition, low corruption levels, and independent judiciary make it an attractive jurisdiction for complex environmental financial contracts.

The IETA Singapore Hub

The International Emissions Trading Association (IETA) maintains a Singapore hub to support companies operating in Article 6 carbon markets.

IETA, together with the Singapore Economic Development Board, provides a platform for service providers, prospective sellers and buyers of Article 6 credits, and government agencies in Singapore.

Developing Market Leadership

Singapore’s early participation in global carbon markets positions it to benefit from this growth and to shape global standards.

By investing in high-quality platforms, strong regulations, and bilateral diplomacy, Singapore is not just participating in carbon markets. It is helping define how those markets should work.

Key Registries and Standards Operating in Singapore

Understanding which registries and standards apply to Singapore’s market helps you choose the right instruments for your needs.

Verra (VCS)

Verra’s Verified Carbon Standard is the world’s most widely used voluntary carbon standard. Verra-issued credits are eligible under Singapore’s ICC Framework if they meet the eligibility criteria set by NEA.

Gold Standard

Gold Standard is another major voluntary carbon standard with a strong emphasis on sustainable development co-benefits. Gold Standard credits are also eligible under Singapore’s ICC Framework.

I-REC Standard

The I-REC Standard is the dominant REC framework in Asia. Singapore’s Green Certificate Company is the authorized I-REC issuer for Singapore.

American Carbon Registry (ACR)

Singapore-based companies can acquire high-quality carbon credits issued by ACR and other approved international offset programs and surrender them to the Singapore Government, as long as the carbon credits meet government criteria.

Singapore Standard SS 673

For claims specifically within Singapore’s domestic market, SS 673 provides the local framework for credible REC procurement and retirement.

Pricing: What Do RECs and Carbon Credits Cost in Singapore?

Pricing in these markets is dynamic and depends on supply, demand, project quality, and market conditions.

REC Pricing

RECs prices vary based on demand and supply, but as of mid-2024, small to medium size asset owners in Singapore can expect to sell RECs for around SGD 30 to SGD 40 per certificate.

Prices vary based on:

• Technology type (solar tends to attract premiums)
• Vintage year (more recent vintages are often preferred)
• Geography (locally generated RECs may attract premiums from buyers with geographic preferences)
• Standard (I-REC vs. TIGR may have different price points in specific buyer segments)

Carbon Credit Pricing

Carbon credit pricing is more complex and varies significantly by project type.

Nature-based avoidance credits, mainly from REDD+ forest projects, are expected to see higher demand in 2025. However, prices will likely stay low, mostly under US$5 per tonne.

Premium projects with strong co-benefits, high durability, and alignment with Article 6 requirements command significantly higher prices, sometimes exceeding US$20 to US$30 per tonne.

Under Singapore’s compliance framework, the fixed-price carbon credit used for the compliance market is priced in line with the carbon tax rate, currently SGD 25 per tonne in 2024-2025 and rising to SGD 45 from 2026 onward.

How to Get Started: A Practical Guide for Buyers

For Corporate Buyers New to RECs

Step 1: Define your goal. Are you trying to claim 100% renewable electricity for your Singapore operations? Or are you offsetting broader emissions? This determines whether you need RECs, carbon credits, or both.

Step 2: Calculate your volume. Work out how many MWh of electricity you consume annually. That tells you how many RECs you need to purchase to make a credible 100% renewable energy claim.

Step 3: Choose your standard. For Singapore operations, I-REC is the most commonly accepted standard. Check with your sustainability team or framework requirements (such as RE100 or GHG Protocol) to confirm which standards are accepted.

Step 4: Choose your platform. For RECs, REDEX is a strong starting point given its focus and platform maturity. For carbon credits and broader sustainability procurement, CIX offers a comprehensive solution.

Step 5: Set up an account. Both REDEX and CIX have onboarding processes for corporate buyers. You will typically need to provide company registration details and sign relevant agreements.

Step 6: Procure and retire. Purchase the RECs or carbon credits you need and ensure they are properly retired in the registry in your name. Keep the retirement certificate for your sustainability reporting.

For Renewable Energy Producers Looking to Sell RECs

Step 1: Register your asset. Work with an authorized issuer such as Green Certificate Company (I-REC) or directly with APX (TIGR) to register your renewable energy facility.

Step 2: Set up your data reporting. You will need to report energy generation data regularly. Issuers verify this data before RECs are issued.

Step 3: Receive your RECs. Once verified, RECs are issued into your registry account. One MWh of generation equals one REC.

Step 4: Choose your sales channel. You can sell directly through REDEX’s marketplace, list on CIX, negotiate bilateral deals with corporate buyers, or work with a broker.

Step 5: Transfer and receive payment. Once a deal is agreed, RECs are transferred to the buyer’s registry account and payment is made according to agreed terms.

Note on account costs: For example, I-REC charges SGD 725 to open an account and SGD 2,900 annually to maintain it. If you are only planning to sell a small number of RECs, managing your own trading account can be expensive, and using a platform intermediary like REDEX may be more cost-effective.

ESG Reporting and RECs: Why Getting It Right Matters

Buying RECs or carbon credits is one thing. Reporting them correctly is another.

Companies using RECs and carbon credits need to be aware of:

The GHG Protocol Scope 2 Guidance

The GHG Protocol distinguishes between location-based and market-based accounting for Scope 2 emissions. RECs are used under the market-based method to report reduced Scope 2 emissions. To use RECs credibly, they must:

• Be purchased from the same country or region as the electricity consumed
• Be retired in your name
• Have a matching vintage year to the consumption period

CDP and RE100 Requirements

Many large corporations report to CDP or participate in the RE100 initiative (a commitment to 100% renewable electricity). Both have specific requirements about which REC standards are accepted for which countries. In Singapore, I-RECs sourced from the region are generally acceptable.

TCFD and Singapore SGX Disclosure

SGX-listed companies in Singapore have mandatory annual sustainability reporting obligations, including Task Force on Climate-Related Financial Disclosures (TCFD) reporting on a “comply or explain basis.”

As these disclosures become increasingly scrutinized, the quality and verifiability of RECs and carbon credits will matter more than ever. Using platforms with strong registry integration, like CIX and REDEX, helps ensure your sustainability claims can withstand external scrutiny.

The Future of Singapore’s REC and Carbon Credit Trading Market

Rising Carbon Prices Drive Demand

The carbon tax escalation to SGD 45 per tonne from 2026 will significantly increase financial pressure on Singapore’s large industrial emitters. This will likely boost demand for high-quality international carbon credits as companies seek cost-effective compliance pathways.

More Bilateral Agreements in the Pipeline

Singapore’s diplomatic momentum in Article 6 shows no sign of slowing. Singapore has emerged as a leader in recent carbon diplomacy efforts under Article 6, signing the most bilateral cooperation agreements in recent years and even surpassing Switzerland, historically the top player in this area.

More bilateral agreements mean more authorized supply pipelines, which deepens the market and improves credit availability for Singapore-based buyers.

Technology and Transparency

In 2025, the Singapore government worked together with Verra and Gold Standard to launch the Article 6.2 Crediting Protocol, a guide for countries and project developers to navigate the complex requirements of international carbon credit transfers. This improves standardization and reduces transaction costs.

CORSIA and Aviation Demand

The Carbon Offsetting and Reduction Scheme for International Aviation (CORSIA) creates mandatory demand for carbon credits from international airlines. Singapore, as a major aviation hub, is well-positioned to serve this demand through platforms like CIX, which already offers specialized CORSIA-eligible credit contracts.

Growing Corporate ESG Demand

As sustainability reporting becomes mandatory for more companies and investor ESG expectations intensify, demand for RECs and carbon credits will grow well beyond the compliance sector. Singapore’s platforms are scaling up to serve this broader corporate market.

Common Mistakes to Avoid When Trading RECs and Carbon Credits in Singapore

Buying Without Retiring

Purchasing RECs or credits without formally retiring them in the registry means you cannot make verified sustainability claims. Always complete the retirement step.

Using Expired or Wrong Vintage Credits

REC claims typically require a vintage year that matches the year of consumption. Carbon credits under Singapore’s ICC Framework must represent emissions reductions occurring between January 2021 and December 2030.

Ignoring Geographic Requirements

Some frameworks value the proximity between energy generation and consumption, which may affect REC selection in Singapore. Check whether your reporting framework requires regionally matched RECs before purchasing from distant markets.

Choosing Price Over Quality

The cheapest credits are often the lowest quality. Singapore’s NEA has set clear eligibility criteria precisely because not all credits in the market are equal. Always verify that the credits or RECs you purchase meet the applicable standards.

Not Keeping Documentation

Sustainability claims are increasingly subject to audit. Keep copies of purchase agreements, registry retirement certificates, and any other documentation that supports your claims.

FAQ: Singapore REC Carbon Credit Trading Platform

Q: What is a REC in Singapore?

A REC (Renewable Energy Certificate) in Singapore is a market instrument that certifies one MWh of electricity was generated from a renewable energy source. It allows companies to make verified claims that their electricity consumption is matched by clean energy generation. The most common REC standard in Singapore is the I-REC.

Q: What is the main carbon credit trading platform in Singapore?

Climate Impact X (CIX) is the flagship carbon credit and REC trading platform in Singapore. It is backed by DBS Bank, SGX Group, Standard Chartered, GenZero (Temasek), and Mizuho Financial Group. It offers a Project Marketplace, Auction, and real-time Exchange for both carbon credits and RECs.

Q: How much does a REC cost in Singapore?

As of mid-2024, small to medium-sized asset owners in Singapore can expect to sell RECs for around SGD 30 to SGD 40 per certificate. Prices vary based on the renewable technology type, vintage year, and geographic origin.

Q: Can companies in Singapore use carbon credits to reduce their carbon tax?

Yes. Companies may use high quality international carbon credits to offset up to 5% of their taxable emissions from 2024. These credits must meet Singapore’s Eligibility Criteria set by NEA and MSE.

Q: What is Singapore’s carbon tax rate in 2026?

The carbon tax rate is scheduled to increase to SGD 45 per tonne of CO2 equivalent in 2026 and 2027, with a projected range of SGD 50 to 80 by 2030.

Q: What bilateral agreements does Singapore have for carbon credits?

As of October 2025, Singapore has signed Implementation Agreements with ten countries: Papua New Guinea, Ghana, Bhutan, Chile, Peru, Rwanda, Paraguay, Thailand, Vietnam, and Mongolia. Singapore has also concluded negotiations with additional countries and signed memoranda of understanding with many more.

Q: What is REDEX?

REDEX is a Singapore-headquartered company that operates Asia’s leading trading platform for Renewable Energy Certificates, supporting clients through the full REC lifecycle including asset registration, verification, marketplace, and retirement.

Q: What is an I-REC?

An I-REC, or International Renewable Energy Certificate, is a globally recognized certificate that tracks one MWh of renewable energy generation. It is used in more than 60 countries, and in Singapore, the Green Certificate Company is the I-REC(E) issuer.

Q: What is Article 6 and why does it matter for Singapore?

Article 6 of the Paris Agreement allows countries to cooperate in achieving their climate targets through the international transfer of carbon credits. It matters for Singapore because it enables the city-state to source high-quality, correspondingly adjusted carbon credits from partner countries, giving Singapore-based companies access to a wider and more reliable supply of eligible offsets.

Q: How do I start buying RECs in Singapore?

The easiest starting point is to approach a specialized platform like REDEX or CIX. You will need to register a buyer account, specify your volume and standard requirements, purchase the RECs, and ensure they are retired in the registry in your company’s name. An intermediary can manage this process end to end if preferred.

Conclusion: Singapore Is Where Asia’s Carbon Future Is Being Built

Singapore has done something remarkable. It has combined smart policy, financial depth, technological innovation, and diplomatic hustle to create the most dynamic REC and carbon credit trading ecosystem in Asia.

The Singapore REC carbon credit trading platform landscape, led by Climate Impact X and REDEX, supported by AirCarbon Exchange and SP Group, and anchored by the Carbon Pricing Act and ICC Framework, gives companies a clear, credible, and efficient pathway to meet their sustainability commitments.

Whether you are a large industrial emitter looking to offset your carbon tax liability, a corporate sustainability team trying to achieve a 100% renewable energy claim, a renewable energy developer wanting to monetize your clean energy certificates, or an investor exploring opportunities in green finance, Singapore’s trading infrastructure is ready to serve you.

The market is maturing rapidly. Carbon prices are rising. Regulations are tightening. ESG disclosure requirements are expanding.

Now is the time to understand how Singapore’s REC and carbon credit trading platforms work, and to position your organization to participate confidently in this growing market.

Singapore is not just a trading hub. It is the platform on which Asia’s low-carbon future is being traded, built, and financed.