TOKYO, March 6 (Xinhua) -- Tokyo stocks opened sharply higher Tuesday following Wall Street's overnight rally as investors hedged that U.S. President Donald Trump would back down on his plans for hefty levies on steel and aluminum imports to avoid a trade war.

As of 9:15 a.m. local time, the 225-issue Nikkei Stock Average gained 434.44 points, or 2.06 percent, from Monday to 21,476.53.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, added 30.34 points, or 1.79 percent, at 1,725.13.

On the main section all industry categories advanced, with oil and coal product, metal product and mining-linked issues comprising those that gained the most in the opening minutes after the morning bell.