The main types of revenue sources are

One category is the service industry, and the main sources of revenue include: government procurement, investment income, contracted services, consulting services, and marketing activities;

The other is the manufacturing industry, and the main sources of revenue are: sales of products, rental fees, technology transfer , consulting services, and commercial advertising income. In addition to the above sources of income, some industries can also utilize the proceeds from investment projects, borrowing and lending, and stock options to generate income.

From the financing point of view, the sources of income of enterprises can be divided into two categories: internal financing and external financing.

Internal financing sources are more direct, mainly including cash flow, short-term and long-term loans, corporate owned capital, lease financing, etc.; external financing sources include equity financing, debt financing, note financing, etc.

Expanded Knowledge:

Another major source of revenue is financial aid and government procurement. In many industries, such as health care, education and culture, national and local governments often provide financial subsidies to help companies cover some of their costs, while the government also has a large demand for procurement, and companies can get procurement contracts to get a good income.