Chinese President Xi Jinping has sent a congratulatory letter to the China Quality Conference, which opened Thursday in Hangzhou, capital city of east China's Zhejiang Province.

Noting that quality is an important guarantee for production and life for humanity, Xi said in the letter that China is committed to carrying out quality enhancement actions, improving quality standards, strengthening quality management, promoting reforms for better quality, higher efficiency and more robust growth drivers, and pushing high-quality development.

China is willing to work with all countries to strengthen international cooperation on quality, jointly promote quality reform and innovation, promote quality infrastructure connectivity, and make contributions to promoting global economic development and creating a better future for humanity, Xi said.

Themed with "Quality Evolution, Digital Empowerment, Green Development, Global Synergy," the two-day conference was held for the fourth time since 2014. The previous editions took place in Beijing, Shanghai and Shenzhen, respectively.