Madras Rubber Factory (MRF) is an Indian Multinational tyre manufacturing company and the largest manufacturer of tyres in India, also the sixth largest manufacturer in the world. It is headquartered in Chennai, Tamil Nadu, India. The company manufactures rubber products including tyres, treads, tubes and conveyor belts, paints and toys. MRF also runs the MRF Pace Foundation, Chennai and MRF Challenge in motorsport.