Royal Canin manufactures and supplies dog and cat food worldwide. The company also undertakes research into the formulation and testing of breed and symptom specific nutritional requirements of dogs and cats. It was established by a French veterinary surgeon after he successfully treated a number of skin and coat conditions in pets by feeding them a cereal-based diet he prepared in his garage. After importing an extruder from the US, the company was the first to manufacture dry pet food in France. Aimed primarily at breeders, production steadily increased and distribution extended further into the European market. Sold to the Guyomarc'h Group in 1972, it underwent a further period of expansion, especially in the area of research and development, before being purchased by the Paribas Bank in 1990. The company was floated on the French stock exchange but removed later after it was sold to Mars, Incorporated.