South Korea’s Petrochemical Restructuring Enters Second Phase as Yeosu Overhaul Approved

The approval of the Yeosu restructuring marks the transition from South Korea's emergency feedstock support measures to the structural reform phase of its petrochemical recovery strategy. Earlier in 2026, Seoul introduced a KRW 674.4 billion subsidy program covering up to 50% of increased naphtha, liquefied gas and ethylene feedstock costs, alongside tariff exemptions, faster trade financing, and efforts to diversify feedstock supplies beyond the Middle East. Those measures were designed to stabilize cracker operations during supply disruptions and provide producers with the financial flexibility needed to implement longer-term restructuring.

With feedstock availability recovering, government policy has shifted from preserving production capacity to selectively removing it. Financial support is now directly tied to restructuring commitments, requiring companies to eliminate uncompetitive assets, consolidate overlapping operations and redirect investment toward higher-value businesses. The approval of the Yeosu restructuring follows the earlier Daesan project, bringing total approved ethylene capacity reductions to approximately 2.5 million t/y, or around 68% of the government's target to eliminate up to 3.7 million t/y of domestic ethylene capacity.

The restructuring is backed by more than KRW 700 billion in government support through financing, tax incentives, trade insurance and regulatory relief, while Hanwha Solutions and DL Chemical will contribute approximately KRW 800 billion in self-rescue funding through debt repayment and investment in business transformation. Beyond reducing capacity, the restructuring is intended to fundamentally reshape South Korea's petrochemical portfolio. Rather than competing in increasingly oversupplied commodity markets, the newly integrated business will focus on expanding production of higher-margin specialty materials, including medical-grade polyethylene (PE), functional polyolefin elastomers (POE), and advanced materials for the automotive, power cable and healthcare sectors. The strategy reflects a broader shift away from volume-driven commodity production toward specialty chemicals capable of delivering more resilient margins and stronger long-term competitiveness.

With Daesan and Yeosu now moving ahead, attention has shifted to Ulsan, the only remaining major petrochemical cluster yet to submit a restructuring plan. Completing the restructuring across all three industrial hubs will be critical to reducing structural overcapacity, improving industry profitability and strengthening South Korea's competitiveness against lower-cost regional producers.

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