ITRI has mutual recognition agreements (MRA) regarding acceptance of test reports in explosion protection field for certification purposes with the certification bodies as the listed below. Ex equipment tested and certified in compliance with IEC standards by those listed cooperative certification bodies will be able to access Taiwan market with full validity via ITRI approval services.
| Japan | Technology Institute of Industrial Safety (TIIS) |
| Korea | Korean Safety Certification (KSC) |
| USA | UL LLC (UL) |
| Canada | QPS Evaluation Services Inc (QPS) |
| Canada | Canada CSA Group (CSA), also including CSA Group Testing UK Ltd (previously SIRA Certification Service), CSA Group Netherlands B.V |
| UK | SGS BASEEFA Ltd (SGS BASEEFA) |
| UK | Certification Management Limited (CML) |
| Germany | Physikalisch-Technische Bundesanstalt (PTB) |
| Germany | DEKRA EXAM GmbH (DEKRA EXAM) |
| Germany | TÜV Rheinland Industrie Service GmbH (TUV Rheinland) |
| France | Institut National de l'Environnement Industriel et des Risques (INERIS) |
| Netherlands | DEKRA Certification B.V. (DEKRA KEMA) |
| Hungary | Hungary ExVÁ Ltd (previously BKI) |