(a) the registration address of donghong chemical industries limited in guangzhou, is located at room 307, 3rd floor, nord avenue, new tong town, guangdang city, guangzhou city, with the registration office of the city of guangzhou market supervision authority, represented by a legal person, cai xudong, covering the sale of chemical reagents and aids (except for controlled chemicals, hazardous chemicals); wholesale trade in commodities (except for licensed goods); wholesale distribution of chemical products (except hazardous chemicals); research services for food science and technology; chemical engineering research services; retailing of chemical products (except hazardous chemicals); and chemical product testing services;