07:45 AM EDT, 09/16/2025 (MT Newswires) -- enCore Energy (EU.V) said Tuesday that the U.S. Environmental Protection Agency's Environmental Appeals Board allowed the Dewey Burdock in-situ recovery uranium project in South Dakota to advance through federal permitting after denying a petition to block the development.

The petition was filed by the Oglala Sioux Tribe, Black Hills Clean Water Alliance and NDN Collective in an attempt to prevent the EPA from issuing Class III and Class V underground injection control permits for the project.

With the EAB's ruling, enCore said all major federal authorizations for the project, including the NRC source materials license and EPA UIC permits, are final and effective.

"This decision by the EAB affirms the validity of the permits and the integrity of the regulatory process following years of administrative and judicial review," enCore's acting chief executive officer Robert Willette said.

enCore said it plans to commence state permitting activities in 2025, accelerating the project toward development ahead of schedule. Dewey Burdock Project was approved for fast-track federal permitting under the Fast-41 Program on Aug. 28.

enCore's share price jumped 11.9% Monday to $3.48 on the TSXV.