The registered address of hongdong hongtai environmental science and technology ltd. Is the landwall industrial park on the streets of the cities of yanjong, shandong province. The registration authority is the city market supervision authority, with the legal representative of zhuang hongxi, and its operations include the development of environmental technology and technical services; the operation of environmental protection facilities; the development, processing, sale and distribution of environmental equipment and accessories, paper machine machinery and accessories, food machinery, slaughter machines, packaging machinery and car parts; environmental engineering design, construction; the sale of chemical products (without dangerous chemicals); and the import and export of goods. (projects subject to legal approval may not operate without the approval of the relevant department)