The registered address of china calcium (longzhou) science and technology ltd. Is located at 28 pan yang road, dragon pond street, new north district, changzhou city (united states of america's international wisdom valley), 23 quarter 02. The registration authority is the administration office of political services in the changzhou high technology industry development zone (new north region), which operates on behalf of legal persons and includes licensed projects: import and export of goods; import and export of technology; carriage of goods by road (excluding dangerous goods); operation of chemicals (subject to legal authorization, subject to approval by the relevant authorities for the execution of specific projects) general projects: manufacture of specialized equipment for environmental protection; manufacture of fibreglass enhanced plastics; sale of textiles and raw materials; sale of labour protection supplies; sale of textiles and raw materials; sale of the internet (except for goods for which permission is required); extension and application of scientific and technological services; advisory services (without licensing of licensed information); sale of construction and decoration materials; sale of electrical and mechanical equipment equipment, subject to approval by the law; sale of electronics and telecommunications technology technology services (for the sale of electronic and telecommunications services); provision of