DENIOS is the world's leading manufacturer and supplier of hazardous goods storage, occupational environmental protection and job safety products and services. DENIOS was founded in Germany in 1986 when Helmut Dennig invented the oil spill pallet. One day, when he changed the oil for his Volkswagen, he realized he needed to be responsible for the leaked oil. In the 1980s, people often disliked these small oil spills, but he realized that the impact on the environment was even greater. Thinking of this, he created a prototype container for collecting oil—which people today know is called an oil spill pallet. Helmut Dennig has developed his simple and effective spill-out pallet prototype idea into a trusted global company that specializes in the storage of hazardous materials and work safety products for many industries.

DENIOS now has 35 branches around the world and has 6 major production bases. It designs and produces more than 500 different models of DENIOS spill pallets and more than 14,000 other work safety and environmentally friendly products. In 2016, DENIOS entered China and served the Asian market. As a wholly-owned subsidiary of DENIOS Group, Dean Environmental Protection Equipment (Changzhou) Co., Ltd. adopts German technology, drawings and standards, and strictly refers to domestic and foreign laws and regulations for research and development and production, from outdoor storage, transfer storage, and indoor storage systems for dangerous goods. Provide one-stop customized solutions to hazardous chemical handling and disposal equipment.