ANTIMONY

 ANTIMONY is a metal that is used primarily in plastics as
 a flame retardant. It is also used in bearings, ordinance,
 porcelain, glass, batteries, textile goods, elastomers, and
 numerous other applications. The domestic market for
 antimony oxide is approximately 70,000,000 pounds per
 year (valued at more than $200,000,000), and is growing
 at an annual rate of 6.8% per year.  Antimony metal,
 sodium antimonate, and various other products account
 for another 20,000,000 pounds per year. 

 The Chinese supply 89% of the world production of
 antimony ore. China's production is declining, and the
 country is consuming more of their own production. As a
 result, metal prices have risen to a 20-year high of almost
 $3.00 per pound

 USAC is the only significant domestic producer of antimony
 products. Until recently, there were five other domestic
 producers of antimony products, and all of them were
 dependent on Chinese sourced material. USAC is not
 dependent on Chinese feed, but it is currently limited to
 obtaining raw materials sufficient to produce approximately
 160,000 pounds of antimony oxide per month.

 USAC has started a Mexican subsidiary called
 Antimonio de Mexico, S. A. de C. V. (ADM) to explore and
 develop antimony in Mexico. It has been given approval to
 start production by the Mexican authorities. Every effort is
 being made to have the plant operational by fourth quarter
 2006. Initially, feed will be purchased from various mines
 in Mexico and Central America. Both antimony metal and
 oxide will be produced. By the end of this year,
 concentrates are expected from the ADM mine in the
 State of Queretaro, Mexico. Silver will be a major
 byproduct and gold will be a minor byproduct.

Antimony Oxide production
Thompson Falls, Montana

Antimony Ore
Queretaro, Mexico

BRZ™ Processing Plant

ZEOLITE

ZEOLITE is a unique volcanic rock that has a natural cation exchange
feature (it holds calcium, ammonium, potassium, sodium, magnesium,
etc. loosely in its crystal lattice). While uses for zeolite are
tremendous, the United States purchases only 50,000 metric tons
per year. The rest of the world purchases more than 4,000,000 metric tons per year. The United States is just beginning to discover the widespread potential of natural zeolite.

Some of the current applications for natural non-toxic zeolite include water and air filtration, environmental cleanup of chemical spills,
disposal of heavy metals, wastewater treatment, soil amendments, aquaculture, animal nutrition, myco-toxin binding, odor control, desiccants, traction, building materials and concrete additives.

Zeolite products are marketed through the wholly owned USAC subsidiary BEAR RIVER ZEOLITE (BRZ). The products are mined and processed in southeast Idaho. Development of the mine and
construction of the processing plant began in 2001, and sales commenced in 2002. Deposit reserves are estimated to exceed 200,000,000 tons.