A certain limited company is located in Jiangxi Province, and its main business scope includes: licensed projects: production of hazardous chemicals, production of specific organic chemicals containing phosphorus, sulfur, and gas in Class II and III monitored chemicals and Class IV monitored chemicals, import and export of toxic chemicals, inspection and testing of special equipment, and filling of mobile pressure vessels/gas cylinders; General projects: Manufacturing of basic chemical raw materials (excluding the manufacturing of licensed chemicals such as hazardous chemicals), technical services, technology development, technology consulting, technology exchange, technology transfer, technology promotion, sales of chemical products (excluding licensed chemical products), sales of mechanical equipment, sales of instruments and meters, sales of mechanical parts and components, sales of packaging materials and products, import and export of goods.

In March 2025, the company had 5 liquid chlorine horizontal tanks that needed to be equipped with external level measuring instruments. Previously, the instrument products used were from Dinghua Electronics, which had good performance. Due to the update of the era, the previous installation was PE type, and the low-level empty tank had a display. This time, it was replaced with CE type upgrade. As of now, the usage effect is good.