Japan is set to propose a working-level forum for auto trade issues with the United States to speed up its efforts to join negotiations on a trans-Pacific trade framework, sources said Saturday.

Tokyo will make the overture at preliminary talks related to the Trans-Pacific Partnership Agreement, a free-trade initiative led by Washington, on Tuesday, the sources said.

Japan and the U.S. don't have a specific forum for auto trade issues yet, and the United States is expected to view the proposal favorably.