Full-Chain Commercialization Trends in CCUS and Their Implications for Korea: A Review of IEAGHG Technical Reports

In 2025, the global energy supply exceeded 600 EJ, and energy-sector CO 2 emissions reached 35.8 GtCO 2 , increasing the importance of carbon capture, utilization, and storage (CCUS) for addressing process and residual emissions in hard-to-abate industries.This review examines full-chain commercialization trends in CCUS, focusing on the carbon capture and storage (CCS) value chain, where demonstration and deployment are most advanced.Analysis of technical reports published by the International Energy Agency Greenhouse Gas R&D Technology Collaboration Programme (IEAGHG) in 2025 and 2026, together with relevant field cases, identified key issues.These include industrial integration, air quality impacts, modularization, transport and storage costs and availability, flow metering, storage-site performance verification, long-term monitoring and liability transfer, market and financing structures, and social acceptance.These findings indicate that CCUS represents a portfolio of technologies suited to selective applications rather than a universal substitute.In Korea, commercialization requires an integrated framework encompassing appraisal drilling, injection demonstrations, domestic and international storage portfolios, transport and storage networks, monitoring, reporting, and verification, life-cycle assessment, long-term liability arrangements, market models, and public trust.