PRODUCER AND DEALER PRICES (April 27, 1998)

Aluminium: LME settlements US$1,419, alloy US$1,279 per tonne (Apr. 21/98).

Antimony: Representative mid-market US$1,565 per tonne (Apr. 9/98).

Bismuth: Representative mid-market US$4.05 per lb. (Apr. 9/98).

Cadmium: Representative mid-market US$0.35 per lb. (Apr. 9/98).

Chromium: Turkish ore, 48% chromium oxide US$135 per tonne (Apr. 9/98).

Cobalt: Recent physical trades US$24.50-25.50 per lb. (Apr. 9/98).

Copper: Comex May delivery US$0.842 per lb. (Apr. 21/98).

Indium: Indium Corp., ingot, US$325 per kg (Apr. 9/98).

Iridium: Representative mid-market US$550 per oz. (Apr. 9/98).

Magnesium: Producer ingot US$1.80 per lb. (Apr. 9/98).

Manganese: Representative mid-market US$1,200 per tonne (Apr. 9/98).

Molybdenum: Recent physical trades US$4.50-4.75 per lb. molybdenum in oxide (Apr. 9/98).

Niobium: Composite spot ore US$3.00 per lb. Nb2O5 (Apr. 9/98).

Osmium: Representative mid-market US$500 per oz. (Apr. 9/98).

Rhodium: Representative mid-market US$595 per oz. (Apr. 9/98).

Silver: Handy & Harman, New York US$6.230, Toronto $9.172 per oz. (Apr.

21/98).

Tantalum: Spot ore mid-market US$32.00 per lb. Ta2O5 (Apr. 9/98).

Tin: Kuala Lumpur tin market US$5.53 per kg (Apr. 13/98).

Titanium: Sponge, composite free market US$4.25-4.50 per lb.; TiO2 concentrate US$650-710 (Apr. 9/98).

Tungsten: Composite spot ore US$4,950 per tonne WO3 (Apr. 9/98).

Uranium: Uranium Exchange Co. restricted spot price — US$10.80 per lb.

U3O8; former Soviet republics — US$9.25 per lb. U3O8 (Apr. 20/98).

Vanadium: Recent physical trades US$6.00-6.35 per lb. V2O5 (Apr. 9/98).

Zinc: Composite free market, special high grade US$0.5313 per lb. (Apr.

21/98).