Michelin warns of materials shortage

Geneva, Switzerland--Didier Miraton.Michelin's head of innovation, warned yesterday of an impending shortge of raw materials. He did not specify which materials, nor a time scale, but added that Michelin could double the tread life of a truck tyre. Thus, he said, if the volume of trucks on the roads were to double, "We will not use one gramme more of resources."

Miraton did not expand his comments and was not available for further explanation.