United States Antimony Corporation (USAC) NYSE (uamy) is a rapidly growing natural resource company that is increasing its raw material supply of antimony from properties in Mexico and 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." 

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.

  • USAC Corporate Offices and Plant,Thompson Falls, Montana
  • Madero Smelter, Coahuila, Mexico
  • Puerto Blanco Flotation/Gravity Mill, Guanajuato, Mexico
  • Antimony Oxide Ore Gravity Mill, Wadley, San Luis Potosi, Mexico
  • Mining - Los Juarez Property, Queretaro, Mexico
  • Mining - Soyatal District, Queretaro, Mexico
  • Mining - Sierra Guadalupe, Zacetecas, Mexico
  • Mining - Guadalupana, Queretaro, Mexico
  • Bear River Zeolite Pit, Preston, Idaho
  • Bear River Zeolite Plant, Preston, Idaho
USAC Corporate Offices and Plant,Thompson Falls, Montana1 Madero Smelter, Coahuila, Mexico2 Puerto Blanco Flotation/Gravity Mill, Guanajuato, Mexico3 Antimony Oxide Ore Gravity Mill, Wadley, San Luis Potosi, Mexico4 Mining - Los Juarez Property, Queretaro, Mexico5 Mining - Soyatal District, Queretaro, Mexico6 Mining - Sierra Guadalupe, Zacetecas, Mexico7 Mining - Guadalupana, Queretaro, Mexico8 Bear River Zeolite Pit, Preston, Idaho9 Bear River Zeolite Plant, Preston, Idaho10


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1.    Concerns over climate change and environmental remediation have escalated worldwide. BRZ is a low-cost natural material which can remediate a wide variety of problems including water and air pollution, soil contamination, nuclear remediation, landfill issues, HAZMAT sites, heavy metal contamination, odors from CAFOs (concentrated animal feed operations), petroleum spills, sewage treatment, composting, and slaughter house and rendering plant contamination and odors  

2.    BRZ plans to provide delivery of large quantities of bulk BRZ by rail to reduce transportation, packaging, and labor costs by up to $100.00 per ton and to make BRZ significantly more viable for remediation projects.

3.    Systematic test work of the Puerto Blanco mill is underway to start the leach plant in order to enhance recoveries of gold and silver from the Los Juarez mine. The mill has been on care and maintenance for four years.

4.    The price of antimony metal is gradually recovering.

November 4, 2019. Thompson Falls, Montana. United States Antimony Corporation (“USAC”, NYSE American “UAMY”) announces plans to provide rail delivery of bulk Bear River Zeolite (BRZ) zeolite to reduce transportation, packaging, and labor costs by up to $100.00 per ton. BRZ has vigorously pursued nearly all potential markets for the last nineteen years to become consistently profitable. BRZ has an advantage over other domestic and foreign zeolites in terms of purity, hardness, color, low-sodium, high exchange rates for cations such as ammonium, radioactive nuclides, and most heavy metals, and its ability to hold up to 55% of its weight in water. Reducing costs by up to $100.00 per ton will open major markets and increase sales without hindering profitability.

At the present time, the United States and most countries around the world have become very conscious about climate change and the long-term impact on the environment. Zeolites have the ability to solve many of the problems associated with man-made climate deterioration. Synthetic zeolites have been engineered for specific applications but are highly expensive. BRZ is a natural zeolite that is not expensive. In order to take advantage of this new trend and to break into a much larger market, BRZ will offer the best product at economical prices.   

Systematic testing of the gold, silver, and antimony mill at Puerto Blanco for the Los Juarez mine is underway. The mill has been on care and maintenance for four years. Ball mill liners, water systems, and new equipment have been installed.  Completion of the laboratory is imminent which will allow the startup of the leach to enhance gold and silver recovery.   

                        Estimated sales during October 2019 are as follows:


October 2019

Antimony pounds


BRZ zeolite tons


The average Rotterdam price for antimony metal during October 2019 was $6,190 per metric ton or $2.80   per pound. The price of antimony is now starting a slow upward trend. Steps to lower the costs of antimony production have included lowering the mining costs in Mexico, renegotiating North American contracts, and plant improvements

CEO John Lawrence said “The recent worldwide concerns over climate change and environmental remediation pose an excellent target for increasing sales andprofitability of BRZ. Installing equipment to provide rail delivery will allow BRZ to provide one of the highest quality zeolites in large quantities at the lowest price.”

About U.S. Antimony

US Antimony is a growing, vertically-integrated natural resource company that has production and diversified operations in precious metals, zeolite and antimony. 

Forward Looking Statements:

This Press Release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 that are based upon current expectations or beliefs, as well as a number of assumptions about future events, including matters related to the Company's operations, pending contracts and future revenues, ability to execute on its increased production and installation schedules for planned capital expenditures and the size of forecasted deposits. Although the Company believes that the expectations reflected in the forward-looking statements and the assumptions upon which they are based are reasonable, it can give no assurance that such expectations and assumptions will prove to have been correct. The reader is cautioned not to put undue reliance on these forward-looking statements, as these statements are subject to numerous factors and uncertainties. In addition, other factors that could cause actual results to differ materially are discussed in the Company's most recent filings, including Form 10-KSB with the Securities and Exchange Commission.

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