Education Cess and Surcharge are other minor componants on above duities
Buy a Customs Tariff book ,and just go thru relevent sections. Normally they give separately for each item and then all put together. There has been change in CVD ,got lower. Kindly check that as the book may not have it so latest. You can get website address from book and refer to that also.
Bewarwe of China! I don't trust them.I ordered fluorochemical intermediates from a company in China. They prepared the samples with appropriate msds and shipping documents, and sent to a freight forwarder. The freight forwarder did not have a $60 permit to export these materials, so they changed the documentation to read "Peppermint Oil". The US Customs in Alaska noticed the discrepancy and was not amused. "Smuggling!"
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...That's why we call it "Research"!
I believe the practice of false declaration is widespread. The aim is to save the buyer some $$$ but the consequence of fraudulent paperwork can be worse.
I ordered a DPSS laser from China. The paperwork declared it as light parts which is a significantly lower tariff. They also declared a very low value which minimized my Customs charges. Fortunately the misrepresentation wasn't caught by Customs.
This practice can be a headache when it comes to returning goods for warranty repair If they were misrepresented in the first place.
If you get caught , expect Customs to red flag your file and scrutinize all your transactions from that point on ( you make the shit list ).
I work for a "huge" US retailer and all the stuff we import directly from the Chinese suppliers are shipped with vague shipping invoices. We try to get them to use the regular invoice details on the shipping invoice but they refuse. We however are honest and always declare the contents and appropriate values with customs.