The change in base metal stocks on the London Metal Exchange on October 22 was as follows: Copper inventories decreased by 1,050 tons, and the total stock was 82,975 tons. Aluminum stocks fell by 175 tons, with a total stock of 715,025 tons. Tin inventory increased by 50 tons, with a total stock of 5,180 tons. Lead inventory decreased by 550 tons and total inventory was 49,650 tons. Zinc stocks decreased by 1,675 tons and the total stock was 711,625 tons. Nickel inventory decreased by 6 tons, with a total stock of 15,150 tons. Aluminum alloy stocks remained flat with a total stock of 42,660 tons.