translate English to French: Market share has been regained, and the company's production capacity and production efficiency have both been enhanced by the investments made by ATI during the prolonged period of expansion in market demand and decline in imports from the named countries.
De plus, la compagnie a accru sa part du marché, et elle a amélioré sa capacité de production et son efficience de production, grâce aux investissements effectués par ATI durant la période prolongée d'augmentation de la demande sur les marchés, et de réduction des importations provenant des pays concernés.