Also known as electronic chemical materials. Generally refers to special chemicals and chemical materials used in the electronics industry, that is, various chemicals and materials used in the production and packaging of electronic components, printed circuit boards, industrial and consumer complete machines. According to the application, it can be divided into substrates, photoresists, electroplating chemicals, packaging materials, high-purity reagents, special gases, solvents, pre-cleaning dopants, solder masks, acids and corrosives, electronic special adhesives and auxiliary materials And other categories. Electronic chemicals have the characteristics of many varieties, high quality requirements, small dosage, strict requirements on environmental cleanliness, fast product replacement, large capital investment, and high product added value. These characteristics are becoming more and more obvious.

Due to the large variety of electronic chemicals, large professional span, and strong specificity, it is difficult for a single enterprise to master multiple cross-field knowledge reserves and process technologies, and multiple sub-industries have been formed internally. Different from basic chemical raw material industries such as upstream petrochemicals, electronic chemicals in the field of fine chemicals have the characteristics of a high degree of market segmentation and high technical thresholds. The market concentration of subdivided industries is relatively high, and the market share of leading enterprises is relatively large, which is a common feature of the electronic chemicals industry.