Support ChineseVerify
Free tools like the Landed Cost Calculator and the CPSC Lab Search stay free because of people like you. Your support keeps them online, keeps tariff and lab data accurate, and funds the next free trade tool.
Why Your Support Matters
Your quotes depend on accurate data
Your quotes depend on our data being right. When duty rates change and we don't catch it, your margin pays the difference.
Rates change. We track them.
Section 301, 232 and customs fees shift through the year. Your support funds the updates that keep your landed cost numbers current.
Fund the next tool
Your contribution goes straight to the roadmap - the Section 232, AD/CVD and De Minimis calculators importers keep asking for.
Choose a Sponsorship
Every tier funds the tariff and compliance data your quotes depend on.
Supporter
A coffee for the team. Covers hosting and maintenance for a month.
Patron
Covers data refresh costs and helps us add new countries and rate layers.
Champion
Funds the next calculator (Section 232 / AD-CVD / De Minimis). Sponsors get named credit on the tool page + 30-day early access.
Procurement teams at 12+ mid-market importers trust these tools for their quotes - your name could be next.
One-time support. No subscription, no account required.
Sponsorships are confirmed manually for now - pick a tier and we will confirm your contribution by email.
The Free Tools You Support
These tools are free to use, forever, thanks to community support.
Landed Cost Calculator
Estimate import duty, VAT, freight and total landed cost across 7 destinations with EXW / FOB / CIF / DDP breakdown.
CPSC Lab Search
Find CPSC-accepted testing laboratories for your product certification needs.
USCC Validator
Validate an 18-digit Unified Social Credit Code checksum (GB 32100) and decode its region and entity type in your browser.
Incoterms 2020 Selector
Compare all 11 Incoterms 2020 terms, explore the seller/buyer responsibility matrix, and get a ranked recommendation for your shipment.
Section 301 Lookup
Check whether an HTS code is hit by the Section 301 China tariffs, which list and 9903.88.xx subheading, with Section 232 and AD/CVD flags.
Sponsorship FAQ
Prefer to contribute another way?
Reach out for corporate sponsorship, API credits for non-profits, or feature requests.
[email protected]