"I would like to extend warm wishes and congratulations to the People’s Republic of China (PRC) on the 60th anniversary of its founding on October 1," Clinton said in a video message.

"In the last 30 years, China has undergone an extraordinary economic transformation, lifting millions of people out of poverty. This is truly a historic accomplishment," she said.

The secretary said that the United States is pleased that this year also marks the 30th anniversary of U.S.-PRC diplomatic relations. "We are committed to building a positive, cooperative and comprehensive relationship that reflects the deepening ties between our two countries and enhances the security and prosperity of all our people," she added.