The registration address of koser lubricant limited is located in room 1206 of the 12th floor of the hong kong finance house, midway 121 east gate, east chang town community, east chang city, with the registration authority being the market supervision authority of east chang city, represented by a legal person in the mine sea, and includes sales of industrial lubricant oil, assistive lubricant materials, industrial oil removal agents (other than chemical dangerous goods); import, export and import of goods。