14.  Sales and other income 

Revenue is primarily derived from the sale of U₃O₈ to domestic utilities under contracts or spot sales. There were no sales of U₃O₈, or disposal fees billed, in the three months ended March 31, 2022, or March 31, 2021.

During March 2022, we sold a royalty interest related to Strata Energy’s Lance Uranium ISR Project for $1.3 million. There was no carrying value related to the royalty on our balance sheet therefore the entire amount was recognized as other income.