A senior trade ministry official said Monday that Japan has no trade practices that need to be placed on an upcoming U.S. list of items subject to unilateral trade sanctions under its "Super 301" trade law provision.

Vice Minister Osamu Watanabe at the Ministry of International Trade and Industry played down speculation that Japanese trade practices in flat glass and other sectors will be included in the U.S. hit list.

There is nothing in Japan that is subject to Super 301, Watanabe said during a regular news conference.

The fact that market share for U.S. products in Japan is lower than that in other countries is simply the result of competition, he said.