The Sustainability Bond Framework is an umbrella framework, including different types of bonds. Under this framework SEK can issue Green bonds, Social Bonds or Sustainability Bonds (which is the combination of the Green and Social bonds). The goal of the Sustainability framework is to finance and refinance projects corresponding to the trajectory of the Paris Agreement and projects contributing to social benefits.

Already in 2015, SEK launched its first Green Bond Framework. This new Sustainability Bond Framework includes several developments such as social bonds; alignment with the EU taxonomy and an SDG mapping methodology.

The rationale for SEK to issue green and social bonds is to promote Swedish environmental and social solutions in international projects as well as to promote the transition of Sweden to become a climate neutral export nation. SEK has a long term goal to have a climate neutral lending portfolio at the latest 2045.