The United States has revoked an antidumping duty imposed in 1973 on a synthetic rubber from Japan, regarded as the oldest such existing duty in the world, the trade ministry said Wednesday.
Polychloroprene rubber, used for automobile parts, is manufactured by such companies as Denki Kagaku Kogyo K.K., but exports to the United States have been limited as a result of the duty.
The U.S. recently examined the necessity of the duty as part of a review conducted every five years and decided to revoke it due to the absence of requests for its continuation from U.S. manufacturers, including the DuPont group, the Ministry of Economy, Trade and Industry said.