PRODUCER & DEALER PRICES (May 17, 1999)

Antimony: Representative mid-market US$1,240 per tonne (May 11/99).

Bismuth: Representative mid-market US$3.55 per lb. (May 11/99).

Cadmium: Representative mid-market US$0.23 per lb. (May 11/99).

Chromium: Recent physical trades US$60.00-90.00 per tonne (May 11/99).

Cobalt: Recent physical trades US$15.20-16.00 per lb. (May 11/99).

Copper: Comex May delivery US$0.7135 per lb. (May 11/99).

Indium: Indium Corp., ingot, US$215 per kg (May 11/99).

Iridium: Representative mid-market US$395 per oz. (May 11/99).

Magnesium: Producer ingot US$1.80 per lb. (May 11/99).

Manganese: Representative mid-market US$1,005 per tonne (May 11/99).

Molybdenum: Recent physical trades US$2.49-2.60 per lb. molybdenum in oxide (May 11/99).

Niobium: Composite spot ore US$3.00 per lb. Nb2O5 (May 11/99).

Osmium: Representative mid-market US$400 per oz. (May 11/99).

Rhodium: Representative mid-market US$845 per oz. (May 11/99).

Silver: Handy & Harman, New York US$5.395, Toronto $8.075 (May 11/99).

Tantalum: Spot ore mid-market US$32.00 per lb. Ta2O5 (May 11/99).

Tin: Kuala Lumpur tin market US$5.519 per kg (May 11/99).

Titanium: Recent physical trades of TiO2 concentrate US$500-535 per tonne (May 11/99).

Tungsten: Composite spot ore US$4,250 per tonne WO3 (May 11/99).

Uranium: Uranium Exchange Co. restricted spot price — US$10.85 per lb. U3O8; former Soviet republics — US$8.50 per lb. U3O8 (May 10/99).

Vanadium: Recent physical trades US$1.95-2.25 per lb. V2O5 (May 11/99).

Zinc: Composite free market, special high grade US$0.539 per lb. (May 11/99).