Supplier Management Procedure

1. Supplier Classification

Class	Risk Level	Examples	Qualification Required
Critical	High	Fmoc-amino acids, resins	On-site audit
Major	Medium	Solvents, reagents, packaging	Document review
Standard	Low	Lab consumables, PPE	Certificate of analysis

2. Qualification Process

1. Supplier identification and initial inquiry
2. Document review (CoAs, ISO certs, quality manual)
3. Sample evaluation (3 lots tested)
4. On-site audit (for critical suppliers)
5. Approval and addition to Approved Supplier List

3. Ongoing Monitoring

Frequency	Activity
Each receipt	CoA verification, visual inspection
Quarterly	Quality score calculation (% non-conforming)
Annually	Performance review, re-audit (critical only)