The Energy Charter Treaty (ECT) is a multilateral agreement from the 1990s which brought together republics of the former Soviet Union with OECD countries and established a framework for trade and investment in the energy sector. However, the ECT is mainly used to protect investments in fossil fuels. This totally contradicts the goals set by the Paris Agreement and the EU 2030 and 2050 climate objectives. Furthermore, the ECT does not offer any significant benefits for EU Member States. This AK EUROPA Policy Brief outlines not only serious reasons for terminating the treaty but also various possible exit scenarios.