Document type: Standard Operating Procedure (SOP) | Vertical: LFP (Lithium Iron Phosphate) energy-storage spare parts | Corridor: China → Sweden | Revision: 2026-09
This SOP defines the controlled procedure Tradvolt operators and contracted 3PLs follow when receiving, inspecting, and releasing LFP spare-parts shipments that originate in CN and clear customs in SE. It covers documentation reconciliation, AQL sampling, electrical and mechanical verification, quarantine handling, and archive retention. The procedure is read together with the OEM service manuals for the specific module families in scope.
Applies to all inbound consignments of LFP cells, BMS boards, busbars, contactors, fuses, and enclosure hardware moving under Incoterms CIP or DAP from CN consolidation hubs to the SE bonded warehouse. Each lot must be accompanied by an OEM-issued certificate of conformity referencing the relevant IEC and UL safety standards.
| Step # | Action | Owner | Input doc | Output doc | Done-when |
|---|---|---|---|---|---|
| 1 | Receive ASN, packing list, commercial invoice, and Bill of Lading from CN supplier via secure portal. | SE Inbound Coordinator | ASN file ASN_CNSE_YYYYMMDD.csv; supplier commercial invoice CI_*.pdf | Acknowledgement of receipt ACK_YYYYMMDD.pdf | Receipt logged in WMS within 4 business hours of file arrival. |
| 2 | Reconcile HS codes and country of origin against the SE customs tariff schedule. | Customs Clerk | Commercial invoice; supplier COO statement | Tariff line worksheet HS_RECON_*.xlsx | Every SKU line carries a verified HS code and origin flag. |
| 3 | Verify each part number against the OEM service manual to assign criticality tier (A = safety, B = functional, C = cosmetic). | Quality Engineer | OEM service manual extract OEM_SM_*_section.pdf | Criticality register CRIT_*.xlsx | Each SKU is tagged A, B, or C with manual reference page. |
| 4 | Set the AQL sampling plan per ISO 2859-1 General Inspection Level II, AQL 1.0 for major and 2.5 for minor defects. | Quality Engineer | Lot size; criticality register | Sampling instruction AQL_PLAN_*.pdf | Sample size code letter and accept/reject numbers are documented before opening cartons. |
| 5 | Perform physical count, packaging inspection, and dimensional check on the AQL sample. | QC Inspector | AQL sampling instruction; calibrated callipers | Inspection sheet INS_PHYS_*.xlsx | All sample units counted, dimensions recorded, packaging photos taken. |
| 6 | Conduct electrical and safety verification on Tier A items against IEC 62619 and UL 1973 acceptance criteria. | QC Inspector | OEM service manual test section; cell cycler log | Electrical test report EL_TEST_*.pdf | Voltage, IR, and Hi-Pot results recorded for every Tier A unit in sample. |
| 7 | Log any non-conformities on a Non-Conformance Report and move rejected cartons to the bonded quarantine zone. | QC Inspector → Warehouse Supervisor | Inspection sheet; electrical test report | NCR NCR_*.pdf; quarantine transfer slip Q_*.pdf | NCR numbered, supplier notified within 24 h, stock physically relocated. |
| 8 | Release accepted stock, post quantities to the WMS, and print bin labels. | Warehouse Supervisor | Inspection sheet; electrical test report | WMS receipt posting; bin labels BIN_*.pdf | WMS shows accepted quantity at correct bin, blocked quantity in quarantine. |
| 9 | File customs clearance documents (SAD, duty decision, VAT statement) and link to the receipt. | Customs Clerk | Tariff worksheet; SAD SAD_*.xml | Customs dossier CUST_DOSSIER_*.zip | Dossier stored under the receipt number with all duty/VAT references attached. |
| 10 | Archive the complete audit dossier for the regulatory retention period. | QA Manager | All output docs from steps 1–9 | Archive entry in DMS DMS_ID | Dossier retrievable by receipt number within one working day. |
Lot acceptance follows ISO 2859-1 General Inspection Level II with AQL 1.0 for major defects and AQL 2.5 for minor defects. The Quality Engineer records the code letter, Ac, and Re values on the sampling instruction before any carton is opened, and the QC Inspector signs the inspection sheet once results are entered.
[Claim: Sampling procedure follows ISO 2859-1 General Inspection Level II with AQL 1.0 / 2.5 | Src: ISO 2859-1 | URL: https://www.iso.org/standard/114483.html | accessed 2026-09-21]
Tier A parts (cells, BMS boards, contactors in the main power path) are electrically verified against the acceptance limits in IEC 62619 for secondary lithium cells and UL 1973 for energy-storage equipment. Verification logs include open-circuit voltage, insulation resistance, and a Hi-Pot dielectric test where the OEM service manual specifies it.
[Claim: Safety verification aligns with IEC 62619 for cells and UL 1973 for energy-storage equipment | Src: IEC 62619 | URL: https://webstore.iec.ch/publication/61088 | accessed 2026-09-21]
[Claim: UL 1973 covers energy-storage equipment safety requirements | Src: UL 1973 | URL: https://www.shopulstandards.com/ProductDetail.aspx?UniqueKey=36439 | accessed 2026-09-21]
Shipments move under Incoterms CIP Gothenburg or DAP Malmö per the ICC Incoterms 2020 rules. The SE Inbound Coordinator receives the FIATA House Bill of Lading issued by the consolidator and reconciles it against the supplier commercial invoice before customs declaration.
[Claim: Incoterms CIP and DAP are defined in ICC Incoterms 2020 | Src: ICC Incoterms 2020 | URL: https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/ | accessed 2026-09-21]
[Claim: Multimodal consignments are documented via the FIATA House Bill of Lading | Src: FIATA | URL: https://fiata.org/fiata-documents/ | accessed 2026-09-21]
| Day | Milestone | Dependency | Owner |
|---|---|---|---|
| D+0 | Container discharged at SE port | FIATA HBL received | Freight Forwarder |
| D+1 | Customs SAD filed | HS reconciliation complete (step 2) | Customs Clerk |
| D+2 | Cargo released to bonded warehouse | Duty decision issued by Tullverket | Customs Clerk |
| D+3 | AQL sampling plan issued | Lot size confirmed, criticality tiered | Quality Engineer |
| D+4–D+5 | Physical and electrical inspection | Sampling plan accepted, test bench ready | QC Inspector |
| D+6 | NCRs issued, quarantine moved | Inspection results available | QC Inspector / Warehouse Supervisor |
| D+7 | Accepted stock posted to WMS | No open NCRs blocking release | Warehouse Supervisor |
| D+10 | Audit dossier archived | All step outputs signed off | QA Manager |
| Item family | HS code (SE import) | Duty rate | VAT |
|---|---|---|---|
| LFP cells (primary) | 8507.60 | PENDING — lookup | Standard SE rate |
| LFP modules / packs | 8507.60 | PENDING — lookup | Standard SE rate |
| BMS boards | 8537.10 | PENDING — lookup | Standard SE rate |
| Contactors, fuses, busbars | 8536 / 8535 | PENDING — lookup | Standard SE rate |
| Enclosure hardware | 7326 / 7616 | PENDING — lookup | Standard SE rate |
Official lookup portal: Tullverket — Swedish Customs Tariff Search at tullverket.se. Rates must be confirmed against the current SE Tariff at the time of declaration; Tradvolt does not hardcode rates and accepts no liability for figures sourced outside Tullverket.
Disclaimer: HS classifications and duty rates shown above are placeholders. The Customs Clerk must verify each line against the official Tullverket tariff database on the date of declaration and record the decision in the customs dossier. Tradvolt accepts no responsibility for misclassification.
ASN_CNSE_YYYYMMDD.csv — Advance Ship Notice from CN origin.CI_YYYYMMDD.pdf — Commercial invoice from supplier.COO_YYYYMMDD.pdf — Certificate of Origin (CN issuing chamber).HBL_YYYYMMDD.pdf — FIATA House Bill of Lading from consolidator.OEM_SM_*_section.pdf — Relevant extract from OEM service manual.HS_RECON_YYYYMMDD.xlsx — HS code and origin reconciliation worksheet.CRIT_YYYYMMDD.xlsx — Criticality register A/B/C tagging.AQL_PLAN_YYYYMMDD.pdf — ISO 2859-1 sampling plan signed by QE.INS_PHYS_YYYYMMDD.xlsx — Physical inspection results.EL_TEST_YYYYMMDD.pdf — Electrical / safety test results.NCR_YYYYMMDD_NNN.pdf — Non-conformance report (if raised).Q_YYYYMMDD.pdf — Quarantine transfer slip (if raised).SAD_YYYYMMDD.xml — Single Administrative Document filed with Tullverket.CUST_DOSSIER_YYYYMMDD.zip — Complete customs dossier archive.DMS_ID — Archive entry in the Document Management System.Request Quote — replies in 48h Download Audit Checklist (PDF)
Use the Request Quote link to receive a tailored cost slot for your next CN → SE LFP shipment. The checklist PDF mirrors step-by-step fields expected by Tradvolt QC inspectors and is accepted as a pre-filled audit input.