Tire technology has become the development and competitive force. The global each big company scientific research funds generally accounts for its sales of3% ~ 6%;2010 world main tire production company research expenditures of approximately $4970000000. Wherein, Bridgestone, Michelin China, Sumitomo, Pirelli and Hankook R & D costs accounted for the company sales of more than 3%, including the mainland development cost, reach 5.6%, Michelin and Bridgestone for the3%.
Among them, Bridgestone, Michelin, Continental, Sumitomo, Pirelli, Hankook and Yokohama company R & D expenditures were $1921100000, $968900000, $721900000, $212900000, $198300000, $175200000 and $147100000