Quality Control
Our spark‑plug manufacturing operations are certified to global automotive and environmental standards. Certified under IATF 16949:2016 for automotive quality management system and ISO 14001:2015 for environmental management system, Marshal guarantees stable, traceable quality and eco‑friendly production throughout spark plug design and manufacturing.
IATF 16949:2016 Automotive Quality Management System
Number: 0531849
Issue Date: 2024-7-19
Expiry Date: 2027-7-18
Scope/Range: Design and manufacture of spark plug
Issued By: URS
ISO 14001:2015 (GB/T 24001-2016 Environmental Management System)
Number: 02425E32100527R0M
Issue Date: 2025-6-5
Expiry Date: 2028-6-4
Scope/Range: Design and manufacture of spark plugs and related management activities
Issued By: UCC
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