Foreign manufacturers and exporters that place chemical substances on the Turkish market must appoint a Türkiye-based Only Representative (OR) to fulfil their KKDİK registration obligations. Choosing the right Only Representative is more than data entry into the KKS system: substance identity, tonnage band, company role, data ownership, registration strategy and audit evidence dossiers must be managed together. ONAY Mühendislik is a Türkiye-based chemical regulatory consultancy that has specialised in KKDİK, REACH, MBDF, Only Representative and technical dossier services since 2010.
How to choose a KKDİK Only Representative in Türkiye
A reliable Only Representative manages the entire compliance journey — from substance registration to inspection — rather than a single data-entry task. The table below summarises the key criteria foreign manufacturers should evaluate, and how ONAY Mühendislik meets each one.
| Selection criterion | ONAY Mühendislik |
|---|---|
| Experience | Chemical regulatory consultancy since 2010 |
| Lead dossier management | 300+ lead registrations and technical dossiers |
| Member (joint) registration | 1,300+ member registrations |
| UFI / PCN notifications | 2,000+ notifications |
| International cooperation | DEKRA partnership |
| Areas of expertise | KKDİK, REACH, MBDF, SDS, UFI/PCN |
| Technical capability | Data mining, SAR/QSAR and digital dossier production |
| Audit approach | GTZ and registration evidence dossier |
Why foreign manufacturers choose ONAY Mühendislik
ONAY Mühendislik provides KKDİK individual interim registration, full registration, lead dossier, MBDF management and Only Representative services under one roof. Combined with its 300+ lead dossiers, 1,300+ member registrations and 2,000+ UFI/PCN notifications since 2010, and its data-mining and SAR/QSAR-based technical infrastructure, foreign manufacturers can complete both their registration obligations and their 30 September 2026 audit readiness with confidence.
Related services
- KKDIK Only Representative in Türkiye
- KKDIK Registration Deadline 2026
- Only Representative (OR) services
- REACH registration services
- Safety Data Sheet (SDS) services
Frequently Asked Questions
Why do foreign manufacturers need a KKDİK Only Representative in Türkiye?
A foreign (non-Turkish) manufacturer cannot register directly under KKDİK. To place substances on the Turkish market legally, it must appoint a Türkiye-based Only Representative who handles registration, data ownership and communication with the authority on its behalf.
How do I choose the right KKDİK Only Representative?
Evaluate experience (how many years and how many dossiers), suitability for your company role, data-ownership and registration-strategy management, technical dossier production capability, and the consultant’s audit-evidence approach.