While the first six-digits of a code are “harmonized” internationally, any digits coming after the first six (for example, the remaining 4 digits at the end of the HTS code in the U.S.) and their product descriptions can be unique to a particular country.  For example, blenders are classified in subheading 8509.40.00 (statistical reporting number 8509.40.0015) in the HTS, but in China the code is 8509.40.9000. Notice the first six digits (8509.40) are identical and the remaining four digits are different. Also, each country chooses its own duty rates.  So, your foreign supplier may provide a tariff code, but it could be from the country of export and not be the same as the appropriate HTS number.