- Government officials
- President, CEO, Managing Director
- General Manager, Director, Technical Officer, COO, Vice President
- Deputy General Manager Marketing/Sales Director, Manager
- Director of Business Development/Business Development
- Manager Technical Director, Manager R&D Director
- Manager Project Director, Manager Regional Director
- Manager department director, manager consultant
- Analysts, professors, engineers, experts
- Construction machinery manufacturers
- Agricultural machinery manufacturers
- Heavy truck/light truck manufacturer
- Port machinery manufacturers
- Engine manufacturers
- Manufacturer of emission after-treatment systems
- Turbocharging & high pressure common rail system
- Fuels, lubricants, catalysts and additives
- Filtration and fuel injection systems
- Powertrain solutions manufacturer
- Hydraulic electronic control system manufacturer
- Other spare parts and component manufacturers
