Looking on the internet deeply has found these results:

at the time the cargo has been imported is the most popular phrase on the web.

at the time the cargo was imported 10 results on the web	at the time the cargo has been imported 16,260,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
This is Scotland at the time the temperature dropped. Where he was at the time the boy went missing. At the time the US delegation voted against the proposal. The cargo was unloaded in Rotterdam, and now it's in stores all over Europe. A right of deduction shall arise at the time the deductible tax becomes chargeable. Dumping the cargo was not part of our contract. Among the cargo was grain from a farm that uses Reiden pesticides. At the time the Commission undertook to make inspection systems more efficient and more enforceable.	Where he was at the time the boy went missing. Most of the cargo has been loaded. At the time the Commission undertook to make inspection systems more efficient and more enforceable. The cargo has arrived safely and all four survivors have been found. At the time the US delegation voted against the proposal. A right of deduction shall arise at the time the deductible tax becomes chargeable. In many cases, the weight of the cargo has not been correctly balanced. This is Scotland at the time the temperature dropped.

at the time the cargo was imported

10 results on the web

at the time the cargo has been imported

16,260,000 results on the web

More popular!

This is Scotland at the time the temperature dropped.
Where he was at the time the boy went missing.
At the time the US delegation voted against the proposal.
The cargo was unloaded in Rotterdam, and now it's in stores all over Europe.
A right of deduction shall arise at the time the deductible tax becomes chargeable.
Dumping the cargo was not part of our contract.
Among the cargo was grain from a farm that uses Reiden pesticides.
At the time the Commission undertook to make inspection systems more efficient and more enforceable.

Where he was at the time the boy went missing.
Most of the cargo has been loaded.
At the time the Commission undertook to make inspection systems more efficient and more enforceable.
The cargo has arrived safely and all four survivors have been found.
At the time the US delegation voted against the proposal.
A right of deduction shall arise at the time the deductible tax becomes chargeable.
In many cases, the weight of the cargo has not been correctly balanced.
This is Scotland at the time the temperature dropped.