?- Sovema Group S.p.A.
- SIA Industria Accumulatori SpA
- Toshiba Corp
- Posharp
- Manz Italy S.R.L.
- Recor Batteries
- STEELMAXenergy
- MONBAT Group
- Panasonic Corporation
- Duracell Inc
- Hitachi Chemical Co Ltd
- BYD Company Ltd
- Contemporary Amperex Technology Co Ltd