Usac Antimony, Silver and Gold Production Facilities

P.O. Box 643 Phone: 406-827-3523 47 Cox Gulch Road Fax: 406-827-3543 Thompson Falls, MT 59873 Email: [email protected] NYSE MKT: UAMY

USAC ANTIMONY, SILVER AND GOLD PRODUCTION FACILITIES

1. ANTIMONY OXIDE SMELTER, THOMPSON FALLS, MONTANA

This plant has a capacity to produce 15,000,000 pounds per year of antimony oxide or 5,000,000 pounds per year of antimony metal.

Aerial view of Antimony, Silver and Gold Smelter and Corporate Offices, Thompson Falls, Montana

1 Plant Facilities, Thompson Falls, MT

2. SILVER AND GOLD REFINERY, THOMPSON FALLS, MONTANA.

This plant recovers silver and gold as either a high purity silver metal and/or gold as dore or high purity metal. The current capacity is 10,000 ounces of silver and 50 ounces of gold per month.

Pouring precious metals, Thompson Falls, Montana

2 3. ANTIMONY OXIDE OR SULFIDE SMELTER, MADERO, COAHUILA, MEXICO

This smelter produces crude antimony oxide or metal and has a feed rate of 5 tons per day of DSO or concentrate.

Marero Smelter, Coahuila, Mexico

4. ANTIMONY COMBINATION FLOATATION/GRAVITY MILL, PUERTO BLANCO, GUANAJUATO, MEXICO

This plant produces antimony flotation and gravity concentrates that may contain silver and gold. The plant feed capacity is up to 150 tons per day.

Aerial view Puerto Blanco mill, Guanajuato, Mexico showing lined tailings pond.

3 5. ANTIMONY OXIDE ORE GRAVITY MILL, PUERTO BLANCO, GUANAJUATO, MEXICO

This plant produces gravity concentrates that may contain silver and gold. The plant has a feed capacity of up to 75 tons per day.

Pre-crusher circuit Puerto Blanco mill

6. NEW ANTIMONY FLOTATION MILL, PUERTO BLANCO, GUANAJUATO, MEXICO

This is a 500 tons per day flotation mill that is under construction and should be on line by the end of 2013. It will be dedicated to Los Juarez feed.

Puerto Blanco flotation mill

7. ANTIMONY OXIDE ORE GRAVITY MILL, WADLEY, SAN LUIS POTOSI, MEXICO

This plant produces gravity concentrates and has a feed capacity of up to 500 tons per day.

Wadley plant, San Luis Potosi, Mexico