Main sources of supply and international supplier corporations are listed below:

• Mercedes Benz, Germany (Commercial vehicles)
• Peugeot automobile Co., France (Passenger cars)
• Renault, France (Production plants)
• Neoplan, Germany (Commercial vehicles)
• ThyssenKrupp, Germany (Steel for vehicle bodies)
• Hyundai, South Korea (Production plants)
• ZF, Germany (Gearboxes)
• Voith, Germany (Gearboxes)
• Comau, Italy (Production plants)
• Atlascopco, Belgium (Tools)
• Gühring, Germany (Tools)
• Dürr, Germany (paint plant)
• Fischer, Germany (welding equipments)
• Metalcastello, Italy (production plants)
• Sandvik, Sweden (Tools)
• Bosch, Germany (Electrical parts)
• Hella, Germany (Electrical parts)
• Haden, England (production plants)
• Kuka Robot Group, Germany (Robot System)
• Schuler, Germany (Press system)
• Valeo, Germany (Automotive)
• Läpple, Germany (Dies & Tools)
• Siemens AG, Germany