Peptide Supplier Audit Checklist for China Sourcing

Problem definition

Audits fail when they become a tour of facilities without document decisions. This checklist turns supplier assessment into a scored file you can reuse for qualification orders and periodic review.

Use it for remote document audits first. Escalate to video or on-site review only when commercial volume justifies it.

Section A — Legal identity

• - [ ] Legal English name recorded
• - [ ] Chinese legal name recorded (when applicable)
• - [ ] Unified Social Credit Code collected or marked unavailable
• - [ ] Registered address vs operating address noted
• - [ ] Official website and corporate email verified for domain consistency
• - [ ] Business license reviewed (copy stored in private secure storage)

Result: identity_checked / not confirmed

Section B — Manufacturer or trader

• - [ ] Counterparty claims manufacturing or trading
• - [ ] Production site address provided
• - [ ] Process description reviewed for specificity
• - [ ] Certificate legal entity matches claimed producer
• - [ ] Upstream producer disclosed when counterparty is a trader

Result: manufacturer confirmed / trader confirmed / relationship documented / not confirmed

Section C — Quality documentation

• - [ ] Specification template reviewed
• - [ ] Example COA reviewed for completeness
• - [ ] Chromatogram / spectrum attachments available
• - [ ] SDS available
• - [ ] Retention sample policy described
• - [ ] Deviation / complaint handling described at high level

Section D — Laboratory and subcontracted testing

• - [ ] In-house vs subcontracted tests mapped
• - [ ] Testing lab legal name recorded
• - [ ] Accreditation body and certificate number recorded
• - [ ] Scope checked for relevant methods
• - [ ] Report verification path tested

Use Official Resources and How to verify a laboratory.

Section E — Commercial and export controls

• - [ ] Incoterms proposed and understood
• - [ ] Invoice entity matches license entity
• - [ ] Export document package listed
• - [ ] Lead time and MOQ stated as commercial terms, not quality proof
• - [ ] No medical efficacy claims in sales materials used for the deal

Section F — Qualification order gate

Approve a first order only when:

1. Identity is documented 2. Manufacturer/trader status is classified 3. Required batch documents are listed in the PO 4. Independent testing plan and acceptance criteria exist 5. Rejection / replacement terms are agreed

Scoring suggestion for internal use

• - 0–2 sections complete: do not order
• - 3–4 sections complete: small qualification order only
• - 5–6 sections complete: consider broader commercial discussion after successful testing

This scoring is an internal procurement aid, not a regulatory certification.

Related guides

• - How to verify a peptide supplier
• - Manufacturer vs trading company
• - Testing checklist
• - Request supplier matching