MOSCOW, November 11 (RIA Novosti) - NASA is planning to order two Soyuz manned spacecraft and two Progress cargo ships from the Russian Federal Space Agency on a commercial basis for missions to the International Space Station, the head of a Russian aerospace corporation said Friday.

"NASA is willing to buy two Soyuz and two Progress spacecraft," Energia head Nikolai Sevastyanov said at a round table on the space industry's role in the Russian national security system, held in the parliament's upper house.

Sevastyanov said the U.S. Congress had lifted restrictions on purchasing Russian spacecraft with an amendment that past both the Senate and the House of Representatives.

The document's signing is pending.