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At the opening ceremony, he read a congratulatory letter from President Xi Jinping.

Noting that China's economy is switching from high-speed growth to high-quality development, Liu said the country's dynamic microfundations and sufficient macro-policy tools can ensure the sound fundamentals of its economic development.

Over 270 Chinese participants from 11 provinces and 4 municipalities took part in the two-day conference, which on its first morning saw 12 agreements signed between Chinese and Serbian partners.

This year's CABF will set up more than 20 exhibition areas with over 100,000 Chinese classic titles and cultural and creative products on display.

Xi, also general secretary of the Communist Party of China Central Committee and chairman of the Central Military Commission, made the remarks in a congratulatory letter to honor the 70th anniversary of the agency.