If the transaction is CFR or CIF, then after the ship, let the other party fax the original bill of lading to you, which will have the shipping company or freight forwarding agent's contact information of the destination port, even if it does not show, you can know which shipping company, and then contact the local branch or office of the shipping company can be.
But no matter what kind of transaction, as long as the bill of lading on the column of the notifier information is correct, the shipping company or freight forwarder in the cargo to the port before the arrival of the notification will be sent to the notifier.