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Customer Services

Traceability Service

Full supply chain transparency — trace every LONGi module from raw material origin to your doorstep.

Total Supply Chain Transparency

In response to growing demand for supply chain transparency, LONGi has built a comprehensive digital traceability platform that allows customers, investors, and auditors to trace every module back to its source materials — verifying responsible sourcing and ethical manufacturing throughout.

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Raw Material Origin

Trace silicon sources to verified, responsible mining operations with third-party audited certifications.

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Manufacturing Chain

Full visibility into wafer slicing, cell fabrication, and module assembly — plant by plant.

Quality Records

Access flash test data, EL imaging results, and quality certificates for every individual module.

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Carbon Footprint

Module-level carbon footprint calculations including Scope 1, 2, and 3 emissions from production.

Trace Your Modules

Enter your module serial number to access the full traceability report including material sources, manufacturing location, and quality certification data.

Industry Standards Compliance

Solar Industry Forced Labor Prevention Act (SIFPLA)
Uyghur Forced Labor Prevention Act (UFLPA) Compliance
IRMA Standard for Responsible Mining
RBA (Responsible Business Alliance) Code of Conduct
PVEL/Kiwa Supply Chain Traceability Program
BlueWave Supply Chain Transparency Standard