These coupons are exchangeable at post office overseas for postage stamps and enable the sender of an international letter to prepay the reply. Post Office Boxes Fees for Post Office Box Rental are shown below. Senders may send their advertising material, unstamped and unaddressed, enveloped or unenveloped, to all local addressees with letter boxes on the ground floor, households in housing estates where suitable letter boxes or door slots for receiving mail are readily provided at the door of each individual unit. It is also available to some commercial buildings listed in the Circulation List. Senders may make use of this service to send their advertising matters to all local addressees with the letter boxes on the ground floor, or to households in housing estates without ground floor letter boxes.
Senders can now distribute enclosures, such as premiums and samples.
The minimum posting quantity is 2,000 items per posting and the weight limit has been increased to a maximum of 150g. The postage of Hongkong Post Circular Service are shown below. Articles posted under this service must be printed or stamped with a postage paid indicator. Postings must be handed in at a designated post office arranged with the addresses facing the same way and tied into bundles. The minimum quantity for local and surface postings is 500 identical items at a time while that for air is 200 identical items at a time.