U.S. Treasury Secretary Jack Lew

U.S. concerns over China's cyber spying on American companies will not impede progress on other fronts when top officials from Washington and Beijing meet next week, U.S. Treasury Secretary Jack Lew said on Tuesday.

"I'm optimistic that we are going to be able to make some progress again this year," Lew told an event sponsored by the U.S.-China Business Council. "Not withstanding other issues that come up between our countries, it is in both of our interests to maintain the economy discussions.''