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What is the Carbon market? How it works and what Vietnamese businesses need to know

carbon market

Carbon markets are becoming an increasingly important instrument in global greenhouse gas (GHG) emissions reduction policies. By putting a price on emissions and enabling the trading of emission allowances and carbon credits, these mechanisms encourage businesses to reduce emissions and invest in cleaner technologies.

According to the World Bank’s State and Trends of Carbon Pricing 2026 report, approximately 29% of global greenhouse gas emissions are covered by 87 direct carbon pricing instruments.

In Vietnam, the carbon market has entered its pilot phase, with emission allowances allocated to 110 facilities and the domestic carbon trading platform launched in June 2026. These developments introduce new requirements for businesses in emissions management, regulatory compliance, and cost control.

Why should Vietnamese businesses care about the carbon market?

The carbon market is not merely an opportunity to trade carbon credits. It can also affect businesses’ production costs, investment decisions, and competitiveness.

  • Increasingly defined compliance obligations: Vietnam currently has 2,441 facilities required to conduct greenhouse gas (GHG) inventories, of which 110 have been allocated emission allowances under the 2025–2026 pilot scheme.
  • Emissions may become a business cost: Companies covered by an Emissions Trading System (ETS) need to weigh the costs of investing in emission reductions against those of purchasing additional allowances.
  • Impacts extending across supply chains: Mechanisms such as the EU’s Carbon Border Adjustment Mechanism (CBAM), along with requirements from international partners, may affect exporters even if they do not directly participate in Vietnam’s domestic carbon market.

Therefore, emissions management should be integrated into business cost and risk management, rather than being treated solely as an environmental reporting requirement.

What is the carbon market?

A carbon market is a mechanism that enables the exchange and trading of units associated with greenhouse gas emissions or emission reductions, primarily emission allowances and carbon credits, under established regulations and standards.

At its core, the carbon market creates economic incentives to reduce emissions. Businesses can weigh the costs of investing in emission reduction technologies against those of purchasing emission allowances or eligible carbon credits to meet their compliance obligations.

Carbon markets are also part of the broader carbon pricing framework, which includes two common direct carbon pricing instruments:

  • Emissions Trading System (ETS): Allows the trading of emission allowances within a regulated system.
  • Carbon tax: Imposes a tax on greenhouse gas emissions or the carbon content of fuels without establishing an allowance trading market.

In addition to allowance trading under ETSs, carbon markets also include the trading of carbon credits generated from projects that reduce or remove greenhouse gas emissions.

How does the carbon market work?

thị trường carbon (carbon market)

Compliance and voluntary carbon markets

Carbon markets are generally divided into two main categories:

CriteriaCompliance carbon marketVoluntary carbon market
NatureOperates under legal and regulatory requirementsPrimarily driven by voluntary commitments
ParticipantsFacilities and businesses subject to regulatory requirementsBusinesses and organizations choosing to participate
Tradable instrumentsEligible emission allowances and carbon creditsPrimarily carbon credits
PurposeFulfil regulatory emissions obligationsSupport climate goals or voluntarily offset emissions
ExamplesEU ETS, Korea Emissions Trading SchemeCarbon credit transactions under Verra (VCS) and Gold Standard

It is important to note that carbon credits issued in voluntary markets are not automatically eligible for use in compliance markets. Their use must meet the specific requirements of the applicable regulatory framework.

Emission allowances vs. carbon credits

These are two key instruments traded in carbon markets, but they differ in nature:

  • Emission allowance: The right to emit a specified quantity of greenhouse gases, allocated or authorized under a regulatory framework. Typically, one allowance represents the right to emit one tonne of carbon dioxide equivalent (tCO₂e).
  • Carbon credit: A unit representing verified greenhouse gas emission reductions or removals under an eligible certification mechanism. Typically, one carbon credit represents one tCO₂e reduced or removed.

The key difference is that emission allowances represent the right to emit greenhouse gases, while carbon credits are generated from verified emission reductions or greenhouse gas removals. However, not all emission reduction activities automatically generate carbon credits; businesses must meet specific requirements for methodologies, measurement, verification, and certification.

Trading mechanisms and emissions compliance obligations

One of the most common models used in compliance carbon markets is the cap-and-trade system. Under this model, regulators establish an emissions cap and allocate or auction allowances to regulated facilities. Businesses must monitor their actual emissions and surrender allowances corresponding to their obligations for each compliance period.

If actual emissions are lower than allocated allowances, businesses may have surplus allowances available for trading or carrying forward, subject to applicable regulations. Conversely, businesses exceeding their allocated allowances must purchase additional allowances or use other permitted compliance mechanisms.

For example, a business allocated 100,000 tCO₂e in allowances but emitting 110,000 tCO₂e would need to obtain eligible units to cover the 10,000 tCO₂e shortfall.

In addition to absolute emissions caps, some ETS frameworks determine allowances based on emissions intensity, taking into account production output or emissions benchmarks per unit of product. This approach is also being adopted during Vietnam’s pilot phase.

Legal framework and roadmap for carbon market development in Vietnam

Vietnam is continuing to refine its regulatory framework for greenhouse gas inventories, emission allowance allocation, and carbon trading, building on the Law on Environmental Protection 2020, Decree No. 06/2022/ND-CP, and their subsequent amendments and supplements.

Greenhouse gas inventories and allowance allocation

Under Decision No. 42/2026/QD-TTg dated August 10, 2026, the updated list includes 2,441 facilities required to conduct greenhouse gas inventories, an increase of 275 facilities compared with the 2024 list. However, not all facilities subject to GHG inventory requirements are required to participate in the emissions trading system.

Under Decision No. 263/QD-TTg dated February 9, 2026, the total pilot GHG emission allowances for 2025–2026 were approved for allocation to 110 facilities across three sectors:

  • 34 thermal power plants;
  • 25 iron and steel production facilities;
  • 51 cement production facilities.

The total approved allowances amount to approximately 243.1 million tCO₂e for 2025 and 268.4 million tCO₂e for 2026. These figures represent allowances for facilities covered by the pilot scheme, not an economy-wide emissions cap.

On February 27, 2026, the Ministry of Agriculture and Environment issued Decision No. 699/QD-BNNMT, providing for the allocation of specific emission allowances to facilities covered by the pilot scheme.

Regulations on emission allowance and carbon credit trading

Under Decree No. 119/2025/ND-CP, emission allowances are allocated free of charge to covered facilities during the pilot phase. Businesses may use certain flexibility mechanisms, subject to regulatory conditions, including:

  • Banking: Carrying forward unused emission allowances to the next allocation period after fulfilling surrender obligations, under provisions applicable through the end of 2030.
  • Borrowing: Borrowing allowances from the subsequent allocation period, up to 15% of the allowances allocated for the current period. Borrowed allowances cannot be traded.
  • Carbon credit offsetting: Using eligible carbon credits to offset emissions, up to 30% of the emission allowances allocated to the facility.

Carbon trading activities are regulated under Decree No. 29/2026/ND-CP. On June 29, 2026, Vietnam’s domestic carbon exchange was launched, marking the beginning of trading activities during the pilot phase. On October 26, 2026, the Government issued Decree No. 396/2026/ND-CP, amending certain procedures for account registration, project registration, and the issuance of domestic carbon credits. The decree will take effect on December 12, 2026.

Roadmap for Vietnam’s carbon market

Under Decision No. 232/QD-TTg dated January 24, 2025, Vietnam’s domestic carbon market will be developed in two phases:

PeriodKey priorities
2025–2028Finalize the legal framework, develop market infrastructure, and implement pilot operations of the domestic carbon market
From 2029 onwardsOfficially operate the carbon market nationwide, continue improving market mechanisms, and explore international market linkages

With the allocation of emission allowances and the launch of the carbon exchange, Vietnam has moved from policy development to market implementation, although the operational framework continues to be refined.

How will the carbon market affect businesses?

plant growing ground

The development of carbon markets can directly affect business operations in three key areas.

  • First, increasing compliance requirements. Regulated businesses must conduct greenhouse gas inventories, report emissions data, and undergo verification in accordance with applicable regulations. For facilities allocated emission allowances, this data also forms the basis for fulfilling their allowance surrender obligations.
  • Second, impacts on costs and competitiveness. Businesses with high emissions intensity may face additional costs from purchasing emission allowances. Furthermore, the EU’s Carbon Border Adjustment Mechanism (CBAM), which entered its definitive phase on January 1, 2026, introduces additional requirements for emissions data reporting and verification for certain categories of exported goods. (Note: CBAM is a separate regulatory mechanism and should not be confused with the carbon credit market.)
  • Third, opportunities arising from emission reductions. Businesses can reduce compliance costs by improving energy efficiency, adopting new technologies, or trading surplus emission allowances in accordance with applicable regulations. Projects that meet certification requirements may also generate carbon credits, although the ability to issue credits does not guarantee revenue from their sale.

What should businesses do to prepare for the carbon market?

To adapt to carbon market developments, businesses should prioritize three key areas.

Review regulatory obligations

Businesses should first determine whether their facilities are subject to mandatory GHG inventories, allowance allocation, or other relevant regulatory obligations.

Based on this assessment, they should identify applicable inventory methodologies, reporting periods, verification requirements, and compliance responsibilities. Businesses not yet covered by these requirements should also monitor the roadmap for future market expansion.

Conduct GHG inventories and standardize emissions data

Businesses need to identify major emission sources, establish reliable databases, and conduct GHG inventories using methodologies consistent with applicable regulations or standards.

At the same time, they should establish a Monitoring, Reporting, and Verification (MRV) framework to ensure that emissions data is consistently collected, controlled, and verified.

For businesses operating multiple facilities or subsidiaries, consistent methodologies and clearly defined data management responsibilities are particularly important. Over time, digitalizing data collection and consolidation can help reduce errors, improve traceability, and support audit and verification requirements.

Develop emission reduction plans aligned with business performance

Based on GHG inventory results, businesses should identify material emission sources and select appropriate reduction measures, such as improving energy efficiency, optimizing production processes, switching fuels, or investing in new technologies.

These measures should be evaluated based on their emission reduction potential, investment costs, financial returns, and implementation feasibility. Indicators such as emissions intensity, achieved emission reductions, and abatement cost per tCO₂e can help businesses assess performance.

For businesses allocated emission allowances, it is particularly important to compare the costs of investing in emission reductions against the costs of purchasing additional allowances or using permitted flexibility mechanisms. This enables businesses to make investment decisions aligned with both regulatory requirements and long-term business objectives.

Conclusion

Carbon markets are gradually making emissions costs an important factor in production and investment decisions. In Vietnam, the pilot implementation phase represents a critical opportunity for businesses to identify their compliance obligations and strengthen their emissions management capabilities.

Rather than focusing solely on carbon credit trading opportunities, businesses should prioritize GHG inventories, emissions data standardization, and the implementation of effective emission reduction measures. These efforts provide a foundation for regulatory compliance, cost management, and enhanced competitiveness as the carbon market continues to develop.

References:

Note: This article reflects the regulatory framework as of November 4, 2026. Decree No. 396/2026/ND-CP had been issued but had not yet entered into force as of this date. Its effective date is December 12, 2026.

About CGS Vietnam

CGS Vietnam Consulting Joint Stock Company provides specialized advisory services in Corporate Governance, Sustainability (ESG), Risk Management, and Internal Audit. Backed by a team of experienced professionals with deep expertise in international best practices, CGS Vietnam partners with businesses to strengthen corporate governance, enhance management capabilities, meet investor expectations, and achieve long-term sustainable growth.

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