"The document will not be signed either before, or after the [G8] summit," Maxim Medvedkov said, adding that Russian and U.S. experts would continue talks.
The U.S. remains the only country out of the 58-member Working Party on Russia's accession with which Moscow has yet to sign a bilateral protocol. The issue of access to Russia's financial services market has been the main stumbling block in Russia's bilateral negotiations with the U.S. Other issues include intellectual property rights, import duties and agricultural subsidies.
"Despite numerous attempts of experts in recent months, and delegation heads in the last two days, we have failed to find ways to resolve contentious issues," he said, adding that certain progress had been reached on certain problems.
"Until we agree on the whole package, it is as if we have not agreed on any issues," he said.
