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In 2018, according to the basic requirements for certification renewal of food industry production enterprises in China, Sinopec Jianghan Salt Chemical's clean workshop needed to be upgraded and renovated within 30 working days. The cleanroom classification was ISO 8, and the renovation project included adding clean zones, semi-clean zones, raw material warehouses, finished product warehouses, personnel passages, and logistics passages to the cleanroom layout.
Sinopec Jianghan Salt Chemical Hubei Co., Ltd., established in November 2018 and located in Qianjiang City, Hubei Province, is a wholly-owned subsidiary of China Petroleum & Chemical Corporation (Sinopec) [3-5], under the supervision of the State-owned Assets Supervision and Administration Commission of the State Council. The company specializes in the production and sale of chemicals such as caustic soda, liquid chlorine, and bleaching powder, as well as edible salt [3-6]. Its products cover multiple fields, including industrial and food applications. In recent years, the company has improved production efficiency through intelligent upgrades, achieving significant growth in production and sales in 2025, and has participated in numerous domestic and international exhibitions to expand its market. The company actively fulfills its social responsibilities, ensuring the supply of disinfectants during the 2020 pandemic [1], and has received widespread recognition.
This clean room facility for small package edible salt production was constructed in 2018 by Deiiang Company. The project follows GMP standards and includes all necessary systems for food-grade production.
Initial design phase completed by Deiiang Company, including architectural layout, clean room classification (GMP standards), process flow design, and equipment planning.
Main structure construction including wall panels (sandwich panels), ceilings, and doors/windows. All materials selected for smooth surfaces, non-shedding properties, and easy cleaning.
Installation of heating, ventilation, and air conditioning systems with HEPA filtration to maintain required cleanliness levels (ISO Class 7/8).
Installation of epoxy flooring with anti-static and anti-slip properties. Seamless flooring with coving at wall junctions to facilitate cleaning and prevent contamination.
Installation of stainless steel piping for water supply and drainage systems. Includes water purification system and dedicated drains for different process areas.
Installation of power distribution, lighting (sealed fixtures), emergency power system, and control panels. Implementation of clean room-specific electrical requirements.
Installation of production equipment including filling machines, packaging systems, conveyors, and quality control instruments. All equipment designed for clean room environment.
Comprehensive testing of all systems including air cleanliness (particle count), pressure differentials, airflow patterns, and equipment functionality.
This project was handled by our experienced cleanroom construction team, which consisted of 5 project managers, 15 engineers, and 40 skilled workers. All members hold relevant certifications and have received professional cleanroom construction training, ensuring project quality and timely completion.
Cleanroom Celling
Cleanroom windows
Installed Lighting & Electrical
Wall Panel & Celling Panel
Return Air Column
Inside Corner
All construction phases were completed according to the schedule. The project passed all quality inspections and has been officially handed over to the client. The team has also completed training for client operators.
