Scrap inspection under the Thailand Board of Investment (BOI) is critical for factories operating under BOI privileges. For PCBA manufacturers, scrap must be properly classified, recorded, stored, and disposed of according to regulatory and environmental requirements to prevent misuse and ensure compliance.

1️⃣ What to Check (Inspection Scope)

A. Scrap Classification

• PCB bare board scrap
• Assembled PCBA scrap (functional failure, cosmetic reject, process defect)
• Component scrap (ICs, resistors, capacitors)
• Solder dross and tin scrap
• Mixed electronic scrap

B. Scrap Identification & Traceability

• Scrap tags (lot no., model, defect reason, quantity)
• Scrap record vs. production output
• Yield and scrap percentage consistency
• Approval records for scrap disposition

C. Physical Condition of Scrap

• Is PCB destroyed or still usable?
• Are high-value components removed?
• Any intact finished goods mixed in scrap?
• Partial damage vs. full destruction

D. Quantity & Weight Verification

• Physical count vs. system record
• Scrap weight vs. standard BOM consumption
• Abnormal scrap ratio trends

E. Storage & Control Area

• Designated scrap zone
• Clear segregation (good vs. scrap)
• Locked and access-controlled area
• Fire & ESD safety compliance

F. Disposal Process

• Authorized scrap buyer documentation
• Destruction records (crushing, cutting, shredding)
• Environmental compliance documents
• Removal tracking and approval