Tokyo rubber futures slipped on Monday, tracking falls in share prices, but limited supply and firmer oil prices should lend support, dealers said. The benchmark rubber contract on the Tokyo Commodity Exchange for August delivery fell 3.5 yen, or 1 percent, to settle at 338.4 yen ($4.15) per kg. The most active rubber contract on the Shanghai futures exchange dropped 430 yuan to finish at 28,920 yuan ($4,600) per tonne.