Summary
Details
- South Korea
Participation K-ETS is mandatory for organizations designated as allocation entities under the K-ETS legislation. These are generally large emitters that exceed government-defined emissions thresholds and are assigned annual emissions allowances by the competent authorities.
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Background
The Korea Emissions Trading Scheme (K-ETS) was established under the Act on the Allocation and Trading of Greenhouse Gas Emission Permits, enacted in 2012 and implemented from 1 January 2015. It replaced South Korea's earlier Target Management System (TMS) as the country's primary market-based climate policy for large industrial emitters. K-ETS operates as a cap-and-trade system. The government sets an overall emissions cap for covered sectors and allocates emissions allowances to regulated entities. Companies that emit less than their allocated allowances may sell surplus permits, while those exceeding their allocation must purchase additional allowances or use eligible offsets where permitted. This market mechanism is intended to reduce emissions at the lowest overall economic cost. The scheme covers many of South Korea's largest sources of greenhouse gas emissions, including power generation, steel and metals, Petrochemicals, cement, among other industries.
Reporting and Compliance Requirements
Participation in K-ETS involves comprehensive monitoring, reporting, verification (MRV), and compliance obligations. Covered entities must:
Monitor greenhouse gas emissions using approved methodologies.
Prepare annual emissions reports covering regulated facilities.
Have emissions independently verified by an accredited verifier.
Submit verified emissions data to the relevant government authorities.
Receive official certification of reported emissions.
Surrender emissions allowances equal to verified annual emissions within the statutory compliance period.
Maintain records supporting emissions calculations and compliance activities.
Participate in the national allowance registry and trading system where applicable.
Because verified emissions determine the number of allowances that must be surrendered, accurate data collection and third-party verification are fundamental components of compliance.
Penalties for Non-Compliance
The K-ETS legislation provides several enforcement mechanisms. Where a regulated entity fails to surrender sufficient allowances to match its verified emissions, the government may impose an administrative surcharge of up to three times the average market price of emission allowances per tonne of CO₂ for the shortfall, subject to the limits established by law. The legislation also contains criminal provisions for serious market misconduct, including certain forms of market manipulation and fraudulent trading activities involving emission allowances, with penalties that may include imprisonment and substantial fines. In 2025, the Ministry of Environment published official notices imposing administrative fines on entities that violated the K-ETS emissions reporting and verification requirements.
Current Status
K-ETS is mandatory and fully operational. The scheme has progressed through multiple compliance phases, with Phase IV (2026–2030) currently in force. The latest allocation plan introduces a tighter overall emissions cap, expands allowance auctioning in some sectors, maintains free allocation for eligible emissions-intensive trade-exposed industries, and incorporates additional market stability measures. The scheme continues to evolve as South Korea strengthens its climate policy framework and works toward its national emissions reduction commitments and carbon neutrality objectives.
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