As we celebrate the 50th anniversary of In-Situ Recovery technology, this innovative method continues to set the standard for minimally intrusive, eco-friendly, and economically competitive mineral extraction. First commercially tested in the U.S. in 1975, ISR has proven to be a highly successful technique for uranium recovery and is now utilized in 60% of uranium projects worldwide, especially with lower-grade deposits that might not warrant conventional open pit or underground mining due to costs.