Revision history
Keep the older offer on file if a revised rim width or offset changes the price basis.
Independent sourcing
About the Black Rhino procurement desk
We coordinate supplier discovery, quotation comparison, samples, inspection and shipment documents for B2B buyers sourcing from China. Black Rhino is used as a buyer reference. The desk has no affiliation with or authorization from the brand owner.
Our working model
How a request becomes a purchasing record
Capture the baseline
Translate a vehicle or reference drawing into a brief with pitch circle diameter (PCD), wheel offset (ET), center bore, finish and load. Keep open questions in the same record.
Compare the offer
Put minimum quantities, sample costs, packing assumptions and lead-time triggers beside the quoted specification. Preserve the supplier's original offer and revision date. A single supplier can simplify finish and carton control. With multiple suppliers, group the quotes by SKU and compare finish samples, carton marks and delivery points before consolidating them.
Hand off the release file
Record who approves the sample, which supplier owns production and which provider handles inspection, transport and clearance. Share discrepancies with the buyer before commitment.
Operating principles
What stays visible to the buyer
Open assumptions
Mark whether the price includes a sample, tooling, packing and delivery to the named point.
Decision ownership
Buyers sign off fitment and market requirements. Suppliers own production and the supporting records for their offer.
Project roles
Who owns each step
Illustrations show typical working roles on a sourcing project.
Coordination desk
Clarifies the brief and captures differences between offers for review.
External inspector
Measures against the buyer-approved checklist when inspection is commissioned.
Buyer and freight provider
The buyer approves shipment release. The freight provider handles the agreed transport.
Documents reviewed by scope
Ask whose legal entity and location each record covers. Link product-level evidence to the exact SKU, revision and target market.
Discuss a wheel sourcing project
Share the current brief and identify the decision you need help making.
Contact the desk