PRODUCER AND DEALER PRICES (April 28, 2008)

Antimony: Mid-mkt US$5,950/t.

Bismuth: Mid-mkt US$15.30/lb.

Cadmium: Mid-mkt US$3.73/lb.

Coal:EIA Central Appalachian thermal, US$86.25/T; Powder River Basin thermal, US$14.20/T; Northern Appalachian, US$105; US EIA Sept. metallurgical, US$107.67/t. NYMEX Central Appalachian US$95.75; Powder River Basin US$14.65; Eastern Rail US$88.63.

Cobalt: Recent trades US$48.50-51.50/lb.

Copper: Comex May US$3.965/lb.

Indium: Indium Corp., ingot, US$685/kg.

Iridium: Mid-mkt US$425/tr. oz.

Iron Ore:Vale 2008 contracts, US$1.1898-US$1.3441 per dry metric ton Fe unit (Southern System Fines) to US$1.2517 US$1.4060 (Carajas iron ore fines)

Magnesium: Mid-mkt US$5,325/t.

Manganese: Mid-mkt US$4,050/t.

Mercury:Mid-mkt US$600/flask (76 lb.).

Molybdenum: Oxide, recent trades US$32.50-33/lb.

Rhodium: Mid-mkt US$9037.50/tr. oz.

Ruthenium: Mid-mkt US$372.50/tr. oz.

Selenium: Mid-mkt US$38.30/lb.

Silver: US$17.78/tr. oz.

Tantalum: Ta2O5 ore, mid-mkt US$39.50/lb.

Tin: Kuala Lumpur Tin Market, US$21.86/kg.

Tungsten: WO3 ore, mid-mkt US$15,730/t

Uranium: U3O8, Uranium Exchange Co. spot price US$69/lb.; Trade Tech spot price US$69/lb.

Vanadium: V2O5, recent trades US$13.00-15.00/lb. Prices current April 22, 2008