How this service works
Thornfield is a sourcing advisor — not a distributor or trader. We do not hold inventory, do not take title to goods, and do not earn margin on the materials our clients buy. Our fees come from clients only, on a transparent fixed-fee or retainer basis. The materials ship directly from the qualified Chinese supplier to the client, on the client's purchase order, with full mill or batch certification.
This structure exists because the precision-materials buyers we work with — connector OEMs, electronics manufacturers, watchmakers, aerospace tier-twos, oil & gas equipment suppliers — need a sourcing partner whose incentives are unambiguous. If we made margin on the goods, we would have a reason to recommend the wrong supplier. We don't, so we don't.
What we source
- Specialty copper and copper alloys — including beryllium copper (C17200, C17300, C17510 equivalents), high-performance precision alloys for connector and electronics applications, and high-conductivity bar and strip
- Specialty chemicals — electroplating chemistry, photoluminescent pigments, electronic-grade specialty chemicals, ATEX-compliant materials
- Precision components — stamped, machined and surface-finished parts in copper alloy, stainless and engineering plastics
- Sub-assemblies and tooling — for clients who have qualified a Chinese vendor and need ongoing supply oversight
What is included in a typical engagement
- Specification translation — converting Western drawings, standards and tolerance language into terms a Chinese supplier will quote against accurately
- Long-list and short-list — identifying 8–15 candidate suppliers and narrowing to 3 qualified contenders
- Factory audit — on-site visit covering equipment, quality system, process control, traceability and management interview
- Sample qualification — sample order, dimensional and metallurgical inspection, alignment with client incoming-goods criteria
- Commercial negotiation — pricing, payment terms, lead time, MOQ, packaging and certification standards
- Ongoing oversight — optional QA on first articles, shipment release, and dispute resolution as required
Sectors served
- Connector and electronics OEMs requiring specialty copper alloy strip and precision components
- Watchmakers and instrument makers requiring luminescent pigments and precision metal parts
- Aerospace and defence tier-twos requiring beryllium copper bushings, springs and non-sparking tooling
- Oil & gas equipment manufacturers requiring ATEX-compliant copper alloy hand tools and drilling parts
- Automotive and EV component manufacturers requiring high-conductivity copper alloy components