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"The direction of peaceful development is totally correct," he said. "What the two sides should do is to mitigate differences and enhance their communications."

China began to construct its navigation system, named after the Chinese term for the Big Dipper constellation, in the 1990s and started serving the Asia-Pacific region in 2012.

China is home to about 240 million people aged 60 or above, and the proportion of rural left-behind elderly has been rising with younger family members working in cities.

The positioning accuracy of the system has reached 10 meters globally and five meters in the Asia-Pacific region. Its velocity accuracy is 0.2 meters per second, while its timing accuracy stands at 20 nanoseconds.

In 2018, China launched the China International Import Expo in Shanghai which attracted over 3,600 companies from around the world and more than 400,000 Chinese and foreign buyers. Deals for intended one-year purchases of goods and services worth a total of 57.83 billion U.S. dollars were reached at the six-day event.