Junyuan Petroleum Group’s ISO certifications — ISO 9001, ISO 14001, and ISO 45001 — give international
buyers a verifiable basis for evaluating us as a manufacturer, backed by regular third‑party audits rather
than issued once and forgotten.
For procurement and QA teams, this means every shipment is backed by standardized batch processing,
documented lab testing, and traceable inspection records — so what you receive matches the certificate
of analysis, every time.
1. Prevention First —
We invest in process optimization, equipment maintenance, and staff training to catch defects before
they ever reach a shipment.
2. Continuous Improvement —
Routine internal audits, third‑party inspections, and data‑driven analysis keep our ISO certifications
current through every renewal cycle.
3. Customer Satisfaction —
Stable quality, on-time shipments, and responsive support — our certificates are one part of that,
the rest shows up in every order you place.
Registration numbers below can be independently verified through the
CNAS public registry.