MOSCOW, May 26, SPA -- Russia will sign a groundbreaking commercial contract on Tuesday to supply U.S. utility companies with enriched uranium fuel, a Russian atomic industry officialsaid. Under the contract, state-run Tekhsnabeksport would supplyU.S. markets with nuclear fuel enriched from raw uraniumfor the first time, Tekhsnabeksport marketing executiveVadim Mikerin told The Associated Press. Mikerin refused to say how much the contract was worth orwho the buyers would be. Russia is already the biggest single supplier of uraniumfuel to U.S. nuclear plants.--SPA www.spa.gov.sa/668209