Accreditation and Certification

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CIC | CHALLENGE INDUSTRIAL CO., LTD., since 1974, is a leading manufacturer of current transformers, voltage transformers, distribution transformers, detuned reactors, epoxy insulators, electronic energy meters, etc. CIC also supplies and distributes a wide range of other electrical or electronic apparatus for the use of various industries.

Certified to ISO 9001, CIC ensures superior quality of its goods through such advanced technologies and materials as Swiss-manufactured equipment (for the production of resin insulators), Araldite® epoxy resin, and technology transferred from Messwandler-Bau (MWB) of Germany.

Backed by 44 years of experience, CIC offers custom-made products, OEM/ODM services, and technical support tailored to the needs of its discerning clientele.

Accreditation and Certification

ISO Certificates
  • ISO 9001:2015 Certificate (Certificate No.: TW16/00384), issued by SGS.
  • ISO 14001:2015 Environmental Management System Certification (Certificate No.: TW18/10238), issued by SGS.

The scope of these registrations includes the design and manufacture of:

Current Transformers
Potential Transformers
Distribution Transformers
Motor Starting Reactors
Series Reactors
Electricity Meters 

Type Tests, Routine Tests, etc.
  • Certificate of Accreditation (Certificate No.: L1181-190227), issued to CIC's Advanced Electricity Laboratory* by the Taiwan Accreditation Foundation (TAF) - an ILAC member and signatory to the ILAC MRA - in respect of the following testing services (Accreditation Number: 1181; Accreditation Criteria: ISO/IEC 17025:2017; CNS 17025:2018):

Routine Tests and Type Tests for Current Transformers and Potential Transformers (36kV max.)
Routine Tests for Distribution Transformers (24kV max.)
Various tests for Electricity Meters

*Download Advanced Electricity Laboratory (AEL) testing services for instrument transformers and distribution transformers.

Electrical Systems Business Registration License
  • CIC has received the Electrical Systems Business Registration License【Grade A】, issued by Department of Economic Development, Taipei City Government. The scope of this qualification includes all electrical power supply equipment and end-user electrical equipment installation and maintenance work.
Manufacturer Certificates
  • Manufacturer Certificate (Certificate No.: 10103008890-2; granted to CIC's Taoyuan Factory), issued by the Bureau of Energy, Ministry of Economic Affairs, R.O.C., for the manufacture of:

Current Transformers (36kV max.)
Potential Transformers (36kV max.)

  • Manufacturer Certificate (Certificate No.: 10703005800; granted to CIC's Zhongli Factory), issued by the Bureau of Energy, Ministry of Economic Affairs, R.O.C., for the manufacture of:

Distribution Transformers (24kV max.)

UL Certificate for Surge Protection Devices (SPD)

Certificate Number: 20160330-E467230
Report Reference: E467230-20160224
Issue Date: 2016-03-30
Product Models Certified:


Standard(s) for Safety:

ANSI/UL 1449, Surge Protective Devices
CSA C22.2 No. 8 13, Electromagnetic Interference (EMI) Filters
CSA ECN 516 and CSA TIL I 11B, Surge/Transient Voltage Suppressors

Metrology Licenses
  • CIC's Taoyuan Factory and Zhongli Factory have both received the Metrology License (Certificate 05805 and Certificate 06202), issued by the Bureau of Standards, Metrology and Inspection (BSMI), M.O.E.A., R.O.C. This license applies to the manufacture of:

Electricity Meters 

  • CIC has received the Metrology License (Certificate No.: 05087), issued by the Bureau of Standards, Metrology and Inspection (BSMI), M.O.E.A., R.O.C., for the manufacture of:

Instrument Transformers Intended for Electricity Meters

Telecommunication Control Radio Frequency Equipment Business License
  • CIC has received the Telecommunication Control Radio Frequency Equipment Business License, issued by National Communications Commission.

Certificate Gallery