The six digits that decide your duty rate and paperwork. How HS classification works, the mistakes that cost importers money, and how to get the code right before you order.
Read the guide →Smarter global procurement starts here.
Full-length practical guides on HS codes and tariffs, comparing supplier quotes, freight costs, RFQs, and industry-specific specifications.
Latest guides
Unit price is only the first line. Compare landed cost, MOQs, lead times and Incoterms side by side — and learn the red flags that should slow you down.
Read the guide →Transport modes, volumetric weight, and what a freight estimate includes — and excludes — so shipping becomes part of the decision, not a surprise.
Read the guide →More sourcing notes
An effective request for quotation identifies the item, quantity, standards, destination and timeline. Include approved alternatives and packaging requirements where relevant. Confirm how suppliers will handle drawings before sharing sensitive files.
Minimum order quantity is the smallest quantity a supplier will typically accept. Lead time may mean production only, not delivery. Ask separately about production, inspection, pickup, transit and customs clearance.
Material grade, relevant standards, dimensions, finish, required volume, delivery address and handling requirements can change a quotation significantly. For aggregates and concrete, local supply and transport are especially important.
A unit price alone does not equal landed cost. Compare Incoterms, origin, tariff classification, freight, insurance, duties, brokerage and taxes. Confirm applicable HS classification with a qualified broker.
Check manufacturer part numbers, revision, packaging, RoHS/REACH or other required certifications, and whether substitutions are permitted. Verify traceability and supplier authenticity.
General educational content, not customs, legal or engineering advice.