TOKYO, Aug. 10 (Xinhua) -- Tokyo stocks closed lower Friday, with the benchmark Nikkei stock index ending at a nearly one-month low, as investors refrained from taking up bold positions ahead of the outcome of thorny Japan-U.S. trade talks being held in Washington.

The 225-issue Nikkei Stock Average dropped 300.31 points, or 1.33 percent, from Thursday to close the day at 22,298.08.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 20 points, or 1.15 percent, to finish at 1,720.16.

Mining, marine transportation and real estate-linked issues comprised those that declined the most by the close of play.?