Does "Registered Mail" mean I have to give my signature when receiving delivery? Because if it does, packet won't be delivered to my mailbox, instead I have to go to the local post office to get it so that they can have my signature. Practice of requiring signatures even for small value deliveries is very inconvenient.
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No, Registered Mail means the package could be tracked through the tracking system and you could follow its trace at any time. For registered mail, you need to pay additional 8RMB for it. Also, you could get compensation if the package get lost. It has no relationship with the signature requirement.