Not all science funds are provided by the National Natural Science Foundation. The National Natural Science Foundation of China is one of the major science foundation organizations in China, which is responsible for supporting and funding basic research projects. Its source of funds mainly comes from the national financial allocation. In addition to the National Natural Science Foundation, scientific funding can also come from other channels, such as:

1, government departments: The government will also provide financial support for the development of science and technology. For example, the Ministry of Science and Technology, the Ministry of Education, the Health and Wellness Committee and other departments may provide corresponding research funds.

2. Enterprises and institutions: Some large enterprises and institutions will also provide financial support for scientific research projects, especially research related to their business fields.

3. Academic institutions and universities: Academic institutions and universities usually have research funding channels to support teachers and researchers in scientific research.

4. International cooperation projects: Some scientific research projects will receive financial support through international cooperation, such as projects carried out in cooperation with scientific research institutions in other countries or regions.