Negotiations between Japan and the United States over U.S. steel and aluminum tariffs are "robust," with a U.S.-EU deal to ease the duties serving as a "template," Japan's ambassador to Washington said on Monday.

"We have accelerated discussions. There has been robust negotiation taking place, including at the ministerial level," Koji Tomita said during a virtual forum hosted by the Washington International Trade Association (WITA).

He said the U.S.-EU quota agreement that is now allowing some steel and aluminum into the United States duty free is a template for the talks and "the basis on which we are working."