For reliable transportation from mainland China to Hong Kong, you can consider YunExpress, 4PX or SF Express.
Once your packages arrive in Hong Kong, the handling process depends on your chosen service. Logistics companies like YunExpress and 4PX offer end-to-end solutions that include relabeling. They handle the entire process, ensuring your packages are ready for international shipping upon arrival in Hong Kong.
If you choose a service like SF Express, they often coordinate directly with carriers like Hong Kong Post, FedEx, or DHL. These carriers can pick up the packages directly from the logistics company’s facility in Hong Kong and handle the international shipping, including relabeling.
c. Currently, the app supports carriers like HKPost, FedEx (with discounts), and DHL. You can find more details on the app page.