Hebei silo has a registered address of biotech ltd., located in the village of nanhashi, nanhashi township, nanhashi township, hebei province. The registration body is the market supervision authority of dong county and is represented by a legal person, han xinli, operating in the area of agricultural scientific research and experimental development. Organic fertilizers, bio-organic fertilizers, composite microbiological fertilizers, organic materials cureants, soil fixants, soil restoration agents, large amounts of elemental water solution, breeding matrix, microbacterizers, biopesticide development, production (except for prohibited and restricted items) and marketing; sale of medium element water solution; marketing of agricultural materials; harmful biological services; technical guidance on fertilization; services for agricultural technology, development, advice, extension; design, construction; sale, repair, repair and lease of mechanical equipment; geological survey; computer technology research and development, technical services; testing services; sale, lease (except for goods and technologies for which the state prohibits or involves administrative authorization); integrated utilization of raw materials, ash and slag; handling and integrated use of agricultural machinery; technical services for agricultural disease control and pest control; design, construction, design, construction and construction of integrated soil and water fertilisers; design, construction, construction of steel structures and inter-field works; sewage, silting, remediation services; integrated use of raw waste, soil management services; technical development and certification services for the transfer of organic techniques. (projects subject to legal approval may not operate without the approval of the relevant department)