Ahead of a meeting of European Union environment ministers in Brussels on Tuesday, Raisz said the ETS2 was “poorly designed” and “unsuitable” for achieving climate neutrality.

As “a bare minimum”, the ETS2 rollout should be postponed until 2030, she added. Raisz acknowledged the need to reform the emissions trading system, adopted in 2005, but said any changes needed to take into account challenges facing European and Hungarian industry.

She blamed the ETS for 20% of industrial energy costs.

Changes to the ETS should make flexibility and technological neutrality priorities, and the system should be designed for the long term, Raisz said.