PE INTERNATIONAL's clients are:
- ALCAN
- Amplats
- Arcelor
- Baosteel
- Degussa
- European Aluminum Association (EAA)
- Falconbridge
- HC Starck
- International Iron and Steel Institute (IISI)
- EUROFER
- Kupferinstitut
- Nordenham (now Xstrata)
- Norsk Hydro
- PT Timah
- Salzgitter
- Samancor
- Thyssen
- Umicore
