BEIJING, July 19 (Xinhua) -- China will unswervingly deepen high-level opening-up and open its door still wider to the world, Chinese Premier Li Keqiang said on Tuesday.

Li made the remarks at the Special Virtual Dialogue with Global Business Leaders hosted by the World Economic Forum.

China's economy has been deeply integrated into the global economy, and opening-up is China's fundamental national policy, Li said.

He pointed out that China can not develop in isolation from the world, and the world also needs China for its development.

"China's market is also the world's market. China will continue to pursue all-round opening to both developed and developing countries, work with other parties to uphold the multilateral trading regime with the WTO at its core, and promote free trade and fair trade," said the premier.

"In growing trade, frictions and disputes are inevitable. We need to seek common ground and properly handle differences, to keep industrial and supply chains secure and stable," he added.