See what others miss
From import evidence to the next right question.
MarginMining helps ecommerce founders review shipment evidence, spot cost gaps and turn the findings into practical actions for suppliers, brokers or internal teams.
How MarginMining works
Evidence in. Cost gaps out. Action Pack ready.
Upload evidence
Add shipment documents, invoices, duty statements, product data or landed-cost files.
Find the gaps
MarginMining reviews the evidence with you, surfacing supported findings, missing information, HS code questions and weak landed-cost assumptions.
Send the next question
Get a practical Action Pack with review signals, missing evidence and copy-ready questions for your broker, supplier or internal team.
Possible outcomes
What the review can conclude.
A review of one shipment ends in one of four places. Each one tells you what to do next, and what it deliberately does not claim.
Nothing specific to question
The evidence you supplied did not contain a specific reason to question the duty treatment on this shipment.
This is not confirmation that the duty treatment is correct, complete or compliant.
More evidence needed
Key documents were missing or unreadable, so the duty charged on this shipment could not be checked against the paperwork yet.
This is not a finding either way. It tells you which document to get next.
Worth a professional review
Something specific in your documents is a documented reason to have the duty treatment looked at by a licensed customs specialist.
This is not a refund, a recovery amount or a statement that duty was overpaid.
Compliance point to check
Something in the evidence points the other way: an inconsistency or gap that is better reviewed before the next shipment clears.
This is not a compliance determination. It is a prompt to check with your clearance party.
MarginMining only reports duty it can observe in your documents. It does not calculate refunds, savings or recovery amounts, and it does not decide tariff classification or origin eligibility.
What you get back
An Action Pack turns messy evidence into the next practical step.
Every Import Cost Review produces a copy-ready Action Pack: an evidence summary, supported findings and messages to send suppliers, clearance teams and your internal landed-cost file. Actions describe what the evidence supports and what still needs checking; final customs treatment sits with your clearance party.
Evidence checked
See which documents were reviewed and which evidence is still missing.
Review signals
See where duty, freight, origin, valuation or variant-cost assumptions are supported by evidence and where they still need verification.
Recommended first action
See the most useful next question to ask before the cost number is trusted downstream.
Copy-ready message
Use plain-English wording with your broker, supplier or internal team.
Import tools
Use import tools when evidence needs cleanup.
Import Cost Review is the main workflow. Import tools help prepare cleaner evidence before running or updating a review.
Evidence first. Never customs guesswork.
MarginMining does not provide customs, tax or legal advice.
It organises evidence, highlights review signals and prepares questions you can raise with your broker, supplier or internal team.
Source-backed signals
Review signals are framed around evidence so you can see why a question was raised.
Evidence-led wording
Findings describe what the evidence supports and what still needs checking. They are not final customs, duty or eligibility outcomes.
You stay in control
Use the findings to decide what to review, what to ask and who to involve.
Start with the cost question in front of you.
Review your last shipment and get an Action Pack showing what is missing, what to question and who to ask.