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China has become the world's largest lab-grown diamond producing country with its production accounting for 90 percent of the world's total, according to a report by industry analysis website ifanr.com.

China has more than 50 ethnic groups, some of which have their own spoken and written languages.

China has 7,169 registered charity organizations with 172 million volunteers across the country. Information on over 3.9 million volunteer projects has been made public and volunteers have rendered more than 2.19 billion hours of service.

China expects that the EU will continue to adhere to market liberalization and free trade and China is glad to see that Bulgaria plays an active role in promoting the healthy development of China-EU relations, the Chinese foreign minister said.

China climbed to 17th on the GII rankings from 22nd last year, showing a steady upward trend over the years, showed the GII 2018.