All substances are made up of atoms, and chemistry is the science that studies the interactions between atoms. It encompasses various fields, including quantum chemistry, computational chemistry, semiconductors and optoelectronics, detection and rapid screening platforms, PM2.5 and atmospheric chemistry, life sciences and medical materials, novel materials and nanotechnology, drug synthesis and design, environmental, marine, and earth sciences, food science and safety, green energy and batteries, as well as agriculture, livestock, and aquaculture.

The industries related to chemistry are diverse. In addition to traditional industries such as petrochemicals, pharmaceuticals, paper manufacturing, cosmetics, and polymers, recent popular high-tech industries such as semiconductors, liquid crystal displays, light-emitting materials, biochips, nanoparticles, and high-performance batteries are also closely linked to chemistry.