The chemical industry is both diversified and complex. The whole chemical industry mainly includes industrial departments, academic institutions and various national and local laboratories. These three kinds of components carry out basic research, application research and development in different degrees. Different companies, organizations and institutions work differently according to their own ideas and purposes. The industrial sector carries out more research and development, while the academic sector focuses on basic research. Sometimes the industrial sector can carry out its own basic research. And this university and government laboratory often carry out competitive research and development or explore the possibility of industrial application.

The diversity of chemical enterprises has strengthened the national economy and security. According to the CMA report, the chemical industry in the United States has about one million employees, producing 70000 kinds of products, with an output value of $419 billion. It is one of the three major export industries in the United States, strengthening the national and competitive capabilities. The above achievements have not included the pharmaceutical industry, which in many aspects is the application field of chemistry. Fine chemicals need similar research as general chemicals, but also need biocatalysis and biocatalysts.

Environmental problems are the most important in the chemical industry. Reducing environmental pollution is an issue of great concern to all of us. Therefore, we need to develop a new "green chemistry" so that when chemistry is friendly to the environment, it can reduce the generation of waste, reduce the use of energy, and use renewable resources. Therefore, the main goal of chemical industry research is to develop processes and products to reduce waste, CO2 emission and energy utilization. The chemical industry and its enterprises should consider sustainable fossil based or bio renewable resources.

Chemical biotechnology is the rapid application of biotechnology in chemical production. It is closely related to green chemistry and uses renewable raw materials. On the other hand, the application of biotechnology can obtain new products, new manufacturing methods and improve the economy of production, so as to reduce the energy consumption and the internal impact of biological enzyme preparation on the environment.

Chemical biotechnology has brought huge impact on the structure of chemical industry. Some companies have acquired, invested and reorganized around different biotechnology innovations. Biotechnology is very common in the food industry, such as the use of enzymes as starch, beverage production, meat preservation, etc., which will bring greater impact on the food industry in the future. Genetic engineering of recombinant food and crops brings uncertain factors to biotechnology. In the United States, most of these uncertainties have been proved by facts and information that is harmless to food safety and agriculture. The application of biotechnology in pharmaceutical process can be assured, but the policies on biomaterials, fabrics and similar products have not been issued, which is very needed at present.