According to statistics, mainland China is now Hong Kong's largest trading partner, its largest export market, and, it is generally inferred, its largest source of capital; as for the funds invested in the mainland from Hong Kong over the years (including some funds from Taiwan and Japan), they are estimated to approach US $ 100 bn, ranking first among foreign investments in the PRC.
根據統計，目前大陸是香港最大的貿易夥伴、最大的出口市場，以及一般推測的最大外資來源；至於香港歷年來投入大陸的資金（中間夾雜著部份台、日資金），估計高達近千億美元，佔大陸外資第一位。