Photo taken on Sept 24, 2015 shows the national flags of China (R) and the United States as well as the flag of Washington DC on the Constitution Avenue in Washington, capital of the United States. [Photo/Xinhua]

Vice-Premier Liu He, who is also a member of the Political Bureau of the Communist Party of China Central Committee and chief of the Chinese side of the China-United States comprehensive economic dialogue, had a video conversation with US Treasury Secretary Janet Yellen on Tuesday morning at the invitation of the US side.

The two sides conducted practical, candid and constructive exchanges on the macroeconomic situation, and bilateral and multilateral cooperation. Both sides agreed that it is important for China and the US to strengthen macro policy communication and coordination as the world economic recovery is at a critical point of time.

The Chinese side expressed concern over issues including the lifting of additional tariffs and sanctions by the US side and the fair treatment of Chinese enterprises.

The two sides also agreed to maintain communication.

Experts have said China and the US should improve the bilateral economic and trade relationship not only for themselves, but also for the world's economic recovery.

"Whether China and the US can handle their economic and trade relations well will have a bearing on the future of the world, and it is not a choice but a required task for the two countries to improve the relations," said Zhang Yansheng, chief researcher at the China Center for International Economic Exchanges.

China is the largest trading partner of about 130 economies, while the US has trade deficits with more than 100 economies. The two countries have contributed to nearly half of world economic growth in the past decade, Zhang said.

Business leaders have also said healthy economic and trade cooperation between China and US is important for businesses to grow.

Recent reports released by some foreign chambers of commerce, including in the US, the European Union and Japan, showed that nearly two-thirds of US enterprises, 59 percent of European enterprises, and 36.6 percent of Japanese enterprises plan to expand their investments in China, according to the Ministry of Commerce.

Woody Guo, senior vice-president of US-based Herbalife Nutrition, and president of its China branch, said the company is very optimistic about the Chinese market. It is also excited about the 4th China International Import Expo to be held in Shanghai next month, Guo said.

He said China's efforts to expand its domestic market will shore up consumption, including in the health industry, which will bring about huge business opportunities, and have firmed up the company's determination to keep investing heavily in China.

"China has continued to expand its opening-up and create more development opportunities for foreign-funded companies, which many foreign-funded companies have already benefited from," Guo added.