TOKYO, May 12 (RIA Novosti) - Tuesday's signing of an intergovernmental civilian nuclear power agreement will open the door for Russia to supply low-enriched uranium to Japan worth hundreds of millions of U.S. dollars, Russia's nuclear chief said.

"Today an intergovernmental agreement on cooperation in the peaceful use of nuclear power will be signed, which will give us the opportunity for full-fledged cooperation," Sergei Kiriyenko, part of a delegation accompanying Russian Prime Minister Vladimir Putin during his visit to Japan, said.

"This deal will allow us to give the green light to projects worth billions of dollars," he added.