Materials to Change Our World
ANTIMONY: United States Antimony Corporation (USAC) NYSE: UAMY is a rapidly growing natural resource company that is increasing its raw material supply of antimony from third parties around the world. USAC has produced various antimony products since 1969 and is a fully integrated mining, transportation, milling, smelting, and selling company.
USAC operates the only significant antimony smelter in the United States.
ZEOLITE: Bear River Zeolite Company (“BRZ™”) is a wholly owned subsidiary of United States Antimony Corporation (“USAC” NYSE MKT “uamy”) based in Thompson Falls, Montana. Zeolite has countless applications in agriculture, water treatment, air filtration, industry, and more.
Applications for our Antimony Products
Munitions
Semiconductors
Flame Retardants
Batteries
USAC HIGHLIGHTS
JOSEPH A.
CARRABBAJOINS BOARD
Mr. Carrabba is the Retired Chairman, President and Chief Executive Officer of Cliffs Natural Resources, Inc., formerly Cleveland-Cliffs, Inc., from May 2007 to November 2013. He also previously served as Cliffs President & CEO from 2006 to 2007 and as President and Chief Operating Officer from 2005 to 2006. Prior to these executive positions, Mr. Carrabba previously served as President and Chief Operating Officer of Diavik Diamond Mines from 2003 to 2006.
USAC WELCOMES RICK ISAAK
United States Antimony Corporation is pleased to announce the appointment of Richard (Rick) R. Isaak, age 55, as Senior Vice President and Chief Financial Officer effective today. He succeeds Kelly J. Stopher who previously served as the Company’s contract Chief Financial Officer. Mr. Stopher will remain as a consultant during the transition period.
-SOUND ON-
Antimony was first used in ancient times and first described in text in 1540
Who we are. What we do.
United States Antimony Corporation ("USAC"), is a publicly traded (NYSE: UAMY), rapidly growing natural resource company that is increasing its raw material supply of antimony from third parties around the world. USAC has produced various antimony products since 1969 and is a fully integrated mining, transportation, milling, smelting, and selling company. USAC operates the only significant antimony smelter in the United States and it is in a “sold out” condition. The Company has proven experience in underground and open pit mining, flotation and gravimetric milling, crushing and screening, dry grinding, cyanide leaching, precious metal refining, pyro-metallurgy, and marketing.
Operations include a smelter and a precious metal refinery in Montana, and a smelter and three mills in Mexico. Three Mexican properties supply direct shipping ore (DSO) or mill feed for the Mexican operations. The Los Juarez property and mill at Puerto Blanco are being permitted to start gold and silver production that will supplement the antimony values and identify the Company as a “precious metal producer.”
EYES ON ZEOLITE
USAC owns 100% of the Bear River Zeolite, Corp. mine in southeast Idaho that management regards as one of the best zeolite properties in the world due to its high cation exchange capacity, low sodium content, hardness, uniformity, high potassium content, large surface area, and low clay and impurity content.
Zeolites are microporous, crystalline aluminosilicate materials commonly used as commercial adsorbents and catalysts. They mainly consist of silicon, aluminium, and oxygen. The positive ions in zeolite can be exchanged for others in a contacting electrolyte solution. H+ exchanged zeolites are particularly useful as solid acid catalysts.
Zeolite may not be a common word in mainstream conversations, but its uses and the areas of industry and life that Zeolite touches are vast. Zeolite is depended upon for Agricultural, Industrial, and Household uses.
The term zeolite was originally coined in 1756 by Swedish mineralogist Axel Fredrik Cronstedt, who observed that rapidly heating a material, believed to have been stilbite, produced large amounts of steam from water that had been adsorbed by the material. Based on this, he called the material zeolite, from the Greek (zéō), meaning "to boil" and (líthos), meaning "stone"
The largest applications for metallic antimony are in alloys with lead and tin, which have improved properties for solders, bullets, and plain bearings. It improves the rigidity of lead-alloy plates in lead–acid batteries. Antimony trioxide is a prominent additive for halogen-containing flame retardants. Antimony is used as a dopant in semiconductor devices.
Semiconductors: The Future of Antimony
"The study’s researchers have taken a step in this direction by developing a type of layered material called a heterostructure. The heterostructure in the study consists of a layer of a topological insulator material, bismuth antimony telluride or (Bi,Sb)2Te3, and a superconducting material layer, gallium." READ MORE
USAC has been strengthening its Board by continuing to add seasoned board members with Wall Street expertise
March 4, 2024
Changes with Executive Level Management
Mr. John (Gus) Gustavsen has been appointed President of the Company’s Antimony Division and he has relinquished his title as CEO of U.S. Antimony Corporation. The Company is continuing its operations and business activities in Thompson Falls, Montana, where Mr. Gustavsen resides.
February 26, 2024
Joseph A. Carrabba Joins Board of Directors
Mr. Carrabba is the Retired Chairman, President and Chief Executive Officer of Cliffs Natural Resources, Inc., formerly Cleveland-Cliffs, Inc., from May 2007 to November 2013. He also previously served as Cliffs President & CEO from 2006 to 2007 and as President and Chief Operating Officer from 2005 to 2006. Prior to these executive positions, Mr. Carrabba previously served as President and Chief Operating Officer of Diavik Diamond Mines from 2003 to 2006.
August 2, 2023
United States Antimony Corporation Announces Changes to the Board
United States Antimony Corporation ("USAC"), (NYSE: UAMY) announced today the decision of John (Gus) Gustavsen on July 28, 2023, to step down from his position as Chairman and a board member for personal reasons. Mr. Gustavsen will remain in his current position as Chief Executive Officer of the Company. Additionally, the Company announces the appointment of Gary C. Evans, effective July 29, 2023, as Chairman of its Board of Directors. Mr. Evans previously served as Lead Director of the Company. He will continue at this time to be deemed “Independent.”
August 1, 2023
USAC Announces Appointment
Richard R. Isaak Appointed as Senior Vice President & Chief Financial Officer
United States Antimony Corporation is pleased to announce the appointment of Richard (Rick) R. Isaak, age 55, as Senior Vice President and Chief Financial Officer effective today. He succeeds Kelly J. Stopher who previously served as the Company’s contract Chief Financial Officer. Mr. Stopher will remain as a consultant during the transition period.
July 31, 2023
