U.S. Treasury Secretary Jack Lew said on Sunday that it was critical for China to continue moving toward a more market-oriented exchange rate and clearly communicate its actions to the market, Reuters reported. Lew made the remarks during a meeting with Chinese Vice Premier Wang Yang in Beijing, following a G20 finance ministers' summit in Shanghai. The world's top economies declared on Saturday after the meeting that they need to look beyond ultra-low interest rates and printing money to shake the global economy out of its torpor, while renewing their focus on structural reform to spark activity.