Permit Renewal Increases Potential Throughput to Approximately 1.2 Million Gallons Annually and Strengthens Long-Term Strategic Positioning at Perma-Fix NorthwestATLANTA, Jan. 09, 2026 (GLOBE NEWSWIRE) -- Perma-Fix Environmental Services, Inc. (NASDAQ: PESI) (the “Company”) today announced that it has received a final Dangerous Mixed Waste Permit Renewal for its Perma-Fix Northwest (PFNW) Mixed Waste Facility (MWF) located in Richland, Washington. The permit, issued by the Washington Department of Ecology ( ...