China will unswervingly expand high-level opening up and promote high-quality development, and China's mega-size market will provide the world with greater opportunities and more choices, Chinese Vice Premier He Lifeng said on Thursday.

He, also a member of the Political Bureau of the Communist Party of China Central Committee, made the remarks during a meeting with Stephen Schwarzman, chairman and CEO of the Blackstone Group, in Beijing.

He noted that China's economy made a good start in the first quarter of this year, further demonstrating its development resilience and vitality. China welcomes more foreign enterprises, including Blackstone, to continue deepening cooperation with the country and achieve mutual benefit and win-win results, he added.

Schwarzman said Blackstone values its cooperation with China and is willing to further expand its business in the country, and contribute to fostering economic and trade cooperation between the United States and China.