Contact
We respond within 48 hours on business days.
General inquiries & sourcing requests
Email: leads@trademargintools.com For wholesale quote requests on specific products (matcha, K-beauty, jasmine rice, etc.), use the "Request a Wholesale Quote" button on the relevant calculator page — your inquiry will arrive pre-filled with the calculation context.
Affiliate / Press / Partnerships
Email: leads@trademargintools.com with subject prefix [PARTNERSHIP].
Bug reports & calculator feedback
Email: leads@trademargintools.com with subject prefix [BUG]. Include the URL of the affected page and the inputs that produced unexpected results.