Chief Cabinet Secretary Yoshihide Suga told a news conference that Tokyo will continue to talk with Washington and relevant nations so that Japanese firms will not be adversely affected.
Japan and the U.S. were in talks about the sanctions on Iran but declined to reveal details,added he.
He also said Tokyo was also in contact with Iran.
The United States has told countries to cut all imports of Iranian oil from November and is unlikely to offer any exemptions, a senior State Department official said on Tuesday as theTrump administration ramps up pressure on allies to cut off funding to Iran.
