The Chinese mainland's trade with Hong Kong totaled 64.32 billion U.S. dollars in the first quarter of 2016, down 3.6 percent year on year, according to the Ministry of Commerce.
The value accounted for 8 percent of the mainland's total overseas trade in the first three months, the ministry's figures show.
The mainland's exports to Hong Kong hit 60.53 billion U.S. dollars, a decrease of 6.5 percent year on year, while the mainland's imports from the region saw a sharp increase of 90.8 percent to 3.79 billion U.S. dollars.
Hong Kong is the mainland's fourth-largest trade partner and third-largest export market, according to the ministry.
The mainland approved 2,833 Hong Kong-invested projects from January to March this year, with the actual use of Hong Kong capital reaching 19.66 billion U.S. dollars, down 20.7 percent from the same period of last year.
