The company who's transporting goods to Ny-Ålesund is Bring.
Please make sure that your gods arrives in Tromsø well before the departure date to ensure space on the boat.
Usually the very,very last minute deadline is no later than two days before (meaning if the boat departs on the 18th. the cargo needs to be delivered before the 16th, not on), and for refrigerated goods early on the same day. But please contact the harbor master if you want to know for sure.