Grading and Size Sets for Mining Operations: Quality Control Playbook

Grading and Size Sets for Mining Operations: Quality Control Playbook

Grading and Size Sets has moved from a talking point to a line item in sourcing decisions for mining operations. Buyers are no longer asking whether it matters — they are asking what it costs, how long it takes and what happens when it is done badly. This note sets out the practical version.

Why it matters now

Three forces are pushing grading and size sets up the agenda for mining operations: tighter delivery windows, closer scrutiny from compliance teams, and the simple fact that a failed bulk order now costs more in lost selling season than the saving from a cheaper supplier. The teams handling this best treat it as a specification problem, not a negotiation problem.

What it changes in practice

• Cost structure — expect the change to land in fabric rather than in the garment price.
• Lead time — 5 extra working days is typical on the first run, less once the spec is stable.
• Documentation — test reports will normally be requested before the balance payment.
• Supplier selection — fewer, better-managed partners rather than spot quoting.
• Risk — the exposure shifts from unit price to calendar and compliance.

Checklist for mining operations buyers

1. Budget the sampling rounds; the cheapest quote usually assumes you skip them.
2. Confirm who owns the cost when a test fails.
3. Write the requirement into the tech pack, not into an email.
4. Keep a golden sample at the factory and a second one with you.
5. Agree the tolerance in writing before the first bulk metre is cut.

Numbers worth tracking

Bottom line

Treat grading and size sets as part of the specification. Written down, it is manageable; left to verbal agreement, it becomes the reason a launch slips.

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