Q: Can I get tariff information from UN Comtrade?
A: UN Comtrade does not include Tariff information. Tariff information can be obtained from the TRAINS database (see http://r0.unctad.org/trains/ ), which is integrated into the WITS software (see http://wits.worldbank.org/witsweb/default.aspx ). The WITS software contains UN Comtrade data.  For access to Comtrade data via WITS, you will need a subscription to UN Comtrade dataA: The 2nd partner is country of consignment.

The country of consignment (in the case of imports) is the country from which goods were dispatched to the importing country, without any commercial transactions or other operations that change the legal status of the goods taking place in any intermediate country. If, before arriving in the importing country, goods enter one or more further countries and are subject to such transactions or operations, that last intermediate country where such transactions or operations took place should be taken as the country of consignment.

The country of consignment (in the case of exports) is the country to which goods are dispatched by the exporting country, without—as far as it is known at the time of exportation—being subject to any commercial transactions or other operations that change the legal status of the goods taking place in any intermediate country. If there are several intermediate countries, then the first intermediate country after leaving the exporting country should be recorded as country of consignment or destination.