The article examines the trade relationship between Hong Kong and the Mainland, focusing on the economic interactions between the two regions. Hong Kong plays a crucial role as the Mainland's primary trading hub, benefiting not only Hong Kong and the Mainland but also the trading partners of China. The study analyzes data on total exports, service trade, service exports, direct shipments, and container throughput to understand the significance of Hong Kong's position in facilitating trade with the Mainland.