Any other costs associated with importing from China?

I’m looking at exw terms and a freight forwarder who has quoted me to my address at home.

I’ve gotten a couple of quotes and all the freight forwarders say that duty is paid.

Is this good enough confirmation that I can consider these my all in costs?

It’s really important to me that there are no further costs, I’m taking a hit on margin with a smaller order.

I’d like to be pretty confident on my landed per unit cost before I commit.