The contract dated September 4, 1950, between the cantons of Basel-Stadt and Basel-Landschaft and Birsfelden AG defines the rights and obligations of the two contracting parties. These include:

> Commitment to the terms and conditions of the current Water Management Contract for 83 years (up to January 15, 2034)

> Switzerland entitled to full use of the generated energy.

> Assumption of full maintenance costs of the shipping facilities necessitated by the construction of the hydropower plant

> Supplementary power generation for the Augst and Wyhlen power plants

> Composition of the Board of Directors