News Press Releases

U.S. Antimony Reports Production and Los Juarez Mill Testing

UAMY | April 4, 2016

United States Antimony Corporation (“USAC”, NYSE MKT “UAMY”) reported preliminary Q1 2016 production as follows:


Product	Q1 2016	Q1 2015	Change
Antimony pounds	872,663	521,956	+ 67.2%
BRZ zeolite tons	3,072	3,032	+ 1.3%
Gold from Australia ounces	68.0	0	+100%
Gold North America ounces	37.24	20.08	+85.5%
Silver North America ounces	14,203.59	8,671.86	+63.8%

The Rotterdam price per metric ton for antimony metal has gone up $200.00 from $5,225.00 ($2.370 per pound) to $5,425.00 ($2.461 per pound) in the last three weeks. Hopefully this may mark the bottom of the market.

Zeolite production and sales have held steady due to heavy rain and snow at Preston, Idaho which delayed the production of multiple orders. However, production should increase in Q2 of 2016 and may include new orders for ammonium control in the mining industry.

Gold production from Australia has begun and the complex metallurgy has been solved, and the capacity of the plant has been increased.

The initial mill testing of 140 metric tons from the Reynaldo pit at Los Juarez was completed to determine the grade of non-selectively mined rock, the recoveries, and whether a cyanide leach circuit was necessary at the Puerto Blanco mill. The ball mill grind was increased to boost liberation of the sub-microscopic gold and silver. Samples were taken every 10 minutes of the heads and tails (feed and discharge of the mill) and combined for a two hour composite that represents 10 metric tons. The samples were submitted to American Analytical Services, an independent assay laboratory. Following are the results:

Metal

Feed grade

Tailings grade

Recovered grade

% Recovery

Antimony

0.410%

0.325%

0.09%

20.57%

Gold

0.059 opt

0.038 opt

0.02 opt

31.52%

Silver

2.56 opt

0.93 opt

1.63 opt

61.32%

The recoveries are not acceptable. Previous flotation testing indicated higher recoveries of the antimony and silver in the 70-80% range. The lower recoveries from the Reynaldo pit were probably due to near-surface oxidation of the minerals. The flotation concentrate from this test was excellent and contained 59.2% antimony, 8.69 ounces per metric ton gold, and 481.9 ounces per metric ton silver, a gross value of $20,919.15 per ton.

Using gold at $1215 per ounce, silver at $15.00 per ounce, and antimony at $2.40 with a 70% recovery, the following values are anticipated per metric ton:


Metal	Value no leach circuit	Estimated value with leach circuit
Antimony	$4.75	$15.19
Gold	$24.30	$71.69
Silver	$24.45	$38.40
Total	$53.50	$125.28

Given the metallurgical results, the installation of the leach circuit is required to achieve economic production. Leach recoveries by independent laboratories have been excellent. Accordingly, the plan is as follows:

Stage 1. Test the newly installed alkaline leach circuit at the Madero smelter to process flotation concentrates.

Stage 2. Permitting is in process and construction of the leach plant at the Puerto Blanco mill will begin. USAC owns much of the necessary equipment.

Stage 3. Install the 450-500 ton per day mill at Puerto Blanco or closer to the mine to reduce trucking costs.

USAC claims no reserves per SEC definitions, and the drilling does not comply with Canadian NI 43-101.

CEO John Lawrence said, “A cyanide leach plant is necessary at the Puerto Blanco mill. Construction of the leach plant will be expedited once the permit has been granted. The Company is approaching the project in a slow methodical manner to prevent any mistakes and then ramp up to a rate of 450-500 tons per day.”

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.