Classification by occupation: management, sales, customer service, project management, quality management, marketing, public relations, media, human resources, administration and logistics.
Finance, auditing and statistics
Computer, network and technology
Electronics, electrical appliances and communication technology
Electricity, energy and power
Consultation and consultancy
Finance (banks, funds, securities, futures and investment), insurance, trade, logistics, procurement and transportation.
Construction, real estate, decoration, property management, translation, hotel, catering, tourism, service, mechanic factory, production machinery, instrumentation, commercial retail, art, design and creativity.
Entertainment and sports, film and television, writing and media.
Education, training, law, medical care, beauty care, biology, pharmacy, chemical industry, environmental protection, scientific research, civil servants, trainees, students at school, etc.