United States Antimony : USAC reports progress on trisulfide and the gold and silver production

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UNITED STATES ANTIMONY REPORTS PROGRESS ON TRISULFIDE AND THE GOLD AND SILVER PRODUCTION

June 1, 2020. Thompson Falls, Montana. United States Antimony Company (‘USAC’, NYSE American ‘UAMY) reported a thickener circuit is being constructed on web site on the Puerto Blanco mill in Guanajuato, Mexico to extend the manufacturing price and management the pulp density of ore to be processed. Throughout this time, the Firm is working to finish the six samples for the Protection Logistics Company (DLA) of the Division of Protection. This includes mining and milling that must be completed previous to the completion of the thickener. The samples will probably be used to find out whether or not USAC can constantly meet the army specification for antimony trisulfide. Mil spec trisulfide instructions a better worth than non-spec product.

Flotation of stibnite to make antimony trisulfide for heart fired ordnance

Could manufacturing for USAC is as follows:

The typical April Rotterdam worth of antimony steel was $5,757.94 per metric ton or $2.598 per pound. USAC’s Could common gross sales worth per pound of antimony contained was $3.112 per pound.

CEO John Lawrence mentioned ‘The trisulfide that has been produced seems good, and the group is anxious to proceed on the cyanide leach of the gold and silver Los Juarez ore now that they are going to have a thickener.’

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UNITED STATES ANTIMONY REPORTS PROGRESS ON THE GOLD AND SILVER LOS JUAREZ LEACH PLANT

Could 4, 2020. Thompson Falls, Montana. United States Antimony Company (‘USAC’, NYSE American ‘UAMY) reported progress on the gold and silver leach plant in Guanajuato, Mexico for the Los Juarez property. Up to now 16 take a look at leaches have been accomplished within the startup course of. To get the mill to its present capability of 100 metric tons per day, a thickener is being constructed on web site to manage the pulp density, and one extra leach tank will probably be constructed on web site.

April manufacturing for USAC is as follows:

The typical April Rotterdam worth of antimony steel was $5,936.84 per metric ton or $2.693 per pound. USAC’s April common gross sales worth per pound of antimony contained was $3.926 per pound. This marks a significant benefit.

CEO John Lawrence mentioned ‘The development of the plant must be completed this quarter, and gold and silver will probably be shipped to Montana. The shakedown of the cyanide plant at Puerto Blanco has progressed as anticipated, and we sit up for turning into a gold and silver mining firm.’

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UNITED STATES ANTIMONY REPORTS PRODUCTION FOR MARCH 2020

April 6, 2020. Thompson Falls, Montana. United States Antimony Company (‘USAC’, NYSE American ‘UAMY) reported March manufacturing for USAC as follows:

The typical March Rotterdam worth of antimony steel was $6,321.00 per metric ton or $2.87 per pound.

CEO John Lawrence mentioned ‘The preliminary trials of the cyanide leach circuit for Los Juarez have been a hit.

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UNITED STATES ANTIMONY REPORTS THE SUCCESSFUL START UP OF LOS JUAREZ GOLD AND SILVER PRODUCTION

HIGHLIGHTS

1.The preliminary cyanide leach recoveries of the Los Juarez gold and silver have been profitable.

2.Minor adjustments within the cyanide circuit have been made and can additional improve recoveries.

3.The general Los Juarez restoration includes using caustic and cyanide leach circuits.

4.The startup and use of the cyanide leach might lead to gold values which can be higher than the worldwide common ore grades. Extra manufacturing this 12 months will confirm last international estimates.

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March 2, 2020. Thompson Falls, Montana. United States Antimony Company (‘USAC’, NYSE American ‘UAMY) reported that the preliminary manufacturing recoveries of the Los Juarez gold and silver cyanide leach plant are profitable

USAC started exploration, improvement, mining and milling of the Los Juarez deposit in 2006. Detailed mapping and sampling delineated jasperoid silica-rich mineralized pipes over an east-west strike size of three.5 kilometers with a most width of 1 kilometer.

After years of metallurgical work, allowing, and building, the Firm has established the next processes to maximise restoration:

LOS JUAREZ MINE

International assay outcomes and exhaustive metallurgical work have indicated a ratio of approximately1 ounce of gold to 90 to 130 ounces of silver. The majority of the gold seems to be not homogenous or recoverable by flotation. The issue is that the gold could also be coarse, not liberated from the gangue, or related to oxide minerals that aren’t amenable to flotation. Accordingly, the gold could also be of a better grade. The variation in gold grades is illustrated within the following shallow drill holes:

FLOTATION MILL

The restoration of treasured metals within the flotation focus was poor. The standard gold restoration was lower than 25%, and the silver restoration was lower than 70%. Antimony recoveries have usually been lower than70%, however they’re anticipated to extend when mining is beneath the floor oxidized zone. Because the silver is related to the antimony, the silver flotation restoration can also be anticipated to extend with depth.

FLOTATION MILL CONCENTRATES AND CAUSTIC LEACH

Usually solely 30% to 40% of the gold and silver was recovered from the flotation mill concentrates by the USAC proprietary smelting course of. This downside was solved by leaching the antimony out of the concentrates with a caustic leach and resulted in almost a 100% restoration of gold and silver from the concentrates.

FLOTATION MILL TAILINGS AND CYANIDE LEACH

The flotation tailings that contained as much as 75% of the gold and 30 to 40% of the silver are taken to a carbon in cyanide leach circuit (CIL). Some seven leaches have been accomplished. The gold recoveries have been within the 86% vary, and the silver recoveries have been decrease. Total recoveries of gold and silver are being enhanced by circuit modifications to realize a gold restoration of 90% or higher and a silver restoration to 85%.

REFINING

The dear metals are concentrated within the Montana refinery and bought in america.

ANTIMONY & ZEOLITE

Manufacturing through the month of February was as follows:

From the center of January 2020, the Rotterdam worth of antimony elevated from $5,700.00 per metric ton or $2.585 per pound, to $6,400.00 per metric ton or $2.903 per pound. This is a rise of $0.318 per pound which ought to impression our gross sales sooner or later. . Antimony costs have climbed prior to now a number of weeks attributable to manufacturing curtailments and provide restrictions associated to the continuing Coronavirus (COVID-19) epidemic in China. The Firm has been approached by a number of prospects in search of new and diversified provides of antimony merchandise.

CEO John Lawrence mentioned ‘The preliminary trials of the cyanide leach circuit for Los Juarez have been a hit. We intend to have additional particulars on estimated grades as manufacturing is ramped up. Proceeds from the 100 ton per day pilot will probably be used to finish the set up of the 400 ton per day mill.’

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U. S. ANTIMONY HAS STARTED PRODUCTION AT LOS JUAREZ GOLD AND SILVER PLANT

February 3, 2020. Thompson Falls, Montana. United States Antimony Company (‘USAC’, NYSE American ‘UAMY) reported that pilot section manufacturing of the Mexican Los Juarez gold, silver, and antimony deposit by means of the cyanide leach plant has commenced.

Following is the progress:

1. The crushing circuit and flotation mill have been run and are in good working situation.

2. The switch of the flotation tailings to the cyanide leach plant has been profitable.

3. The first conditioning tank within the leach plant has been changed with direct piping to the leach tanks to chop prices and expedite leaches.

4. Fireplace laboratory gear, an atomic adsorption spectrophotometer, air flow followers, a silicon carbide tilt and pour furnace for decreasing manufacturing to dore bars has been put in, baghouse and different gear has been put in and is operational

Puerto Blanco laboratory

5. 4 technicians have been educated to assay and alter working parameters.

Atomic adsorption spectrophotometer

John ‘Gus’ Gustavsen coaching technicians

Charging cupels for assay of silver and gold

6. Two manufacturing leaches have been run, and we’re awaiting third celebration assays for disclosure.

Leach tank with cyanide to dissolve silver and gold in progress

Estimated gross sales throughout January 20 are as follows:

The typical Rotterdam worth for antimony steel throughout December 2019 was $5,845.83 per metric ton or $2.65 per pound. A significant BRZ zeolite buyer that has not bought for a number of months is now shopping for product once more after constructing a brand new plant. Seasonal gross sales of BRZ zeolite for pool and spa purposes are choosing up.

CEO John Lawrence mentioned ‘The start of gold and silver manufacturing for USAC is great at a time when most non-ferrous steel costs are challenged. The money circulation from the dear metals will complement the BRZ zeolite and antimony manufacturing.’

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U. S. ANTIMONY REPORTS ON LOS JUAREZ GOLD AND SILVER PLANT

HIGHLIGHTS: The Puerto Blanco mill for the Los Juarez gold, silver, and antimony deposit will begin manufacturing testing throughout January 2020.

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January 6, 2020. Thompson Falls, Montana. United States Antimony Company (‘USAC’, NYSE American ‘UAMY) reported that manufacturing testing of the cyanide leach circuit on the Puerto Blanco mill in Guanajuato has begun. Safety and transportation measures are being applied.

The Los Juarez mineralization is disseminated in jasperoid pipes which can be current over a strike size of three.5 kilometers, as much as 1 kilometer in width, and are believed to be steady beneath 400 meters. The jasperoid is acknowledged visually, however the grade of the gold and silver are speculative and are finest decided by milling. The antimony mineralization is visually acknowledged and customarily is a signature of the dear metals. A world assay based mostly on shallow drilling, sampling, and mill testing is 0.035 ounces of gold, 3.27 ounces of silver per metric ton and 0.65% antimony. The gold equal of the values is 2.6 grams. Sampling of various areas has disclosed gold higher than one ounce and silver as much as 47 ounces per metric ton, and antimony as much as 10%. The deposit is bulk mineable by open pit strategies for years, and the grade is great for an open pit.

Los Juarez Mina Grande pit jasperoid mineralization

Estimated gross sales throughout 2018 and 2019 are as follows:

The typical Rotterdam worth for antimony steel throughout December 2019 was $6,027.12 per metric ton or $2.818 per pound.

CEO John Lawrence mentioned ‘We’re excited that after years of allowing, metallurgical analysis, exploration, mining, constructing a flotation mill that the ultimate section utilizing cyanide leaching to recuperate the gold and silver misplaced within the flotation course of by is being verified.’

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U. S. ANTIMONY REPORTS ON LOS JUAREZ GOLD AND SILVER PLANT AND ANTIMONY TRISULFIDE

HIGHLIGHTS

1. The Puerto Blanco mill for the Los Juarez gold, silver, and antimony deposit may very well be prepared for cyanide leach testing by the top of December

2. Preliminary Grant funds from the Protection Logistics Company have been obtained for the manufacturing of samples to be examined by the U.S. Military to be used in primers for center-fired ordnance.

December 2, 2019. Thompson Falls, Montana. United States Antimony Company (‘USAC’, NYSE American ‘UAMY) reported that hydraulic, mechanical, and electrical testing of the Puerto Blanco mill in Guanajuato has been efficiently accomplished. The laboratory is nearing completion, and reagents are being ordered to begin the leach testing of gold and silver. John Gustavsen from Montana and Heriberto Torres are heading up the pilot challenge.

Puerto Blanco Mill in Guanajuato, Mexico. The sq. pond on the left is the leach pond. The pond to the precise is the flotation pond. Every pond is roughly 5 acres. The crusher, flotation mill, and leach plant are on the decrease proper of the flotation pond. USAC owns land to the decrease proper of the power for future growth.

USAC is at present testing sulfide antimony ore from Mexico for impurities and flotation restoration, making ready the flotation mill at Guanajuato which may even be used for milling the ore, and making ready furnace gear in Montana to supply block antimony trisulfide for testing by the U.S. Military at Picatinny, New Jersey.

Estimated gross sales throughout November 2019 are as follows:

The typical Rotterdam worth for antimony steel throughout November 2019 was $6,212.794 per metric ton or $2.818 per pound.

CEO John Lawrence mentioned ‘Leach testing may very well be prepared at Puerto Blanco by the top of December 2019, and it’ll additionally contain the processing of flotation concentrates at Madero. Typical shake down adjustments, transportation logistics, and a overview of prices per ton of ore processed are anticipated. ‘

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