- 72 Samples from 12 drill holes recently assayed for lithium confirm prior sampling by the state of Texas.
- At full production, Round Top potentially produces approximately 12,300 tons annually of lithium carbonate with an
estimated 105 year mine life
- Assays will now be submitted to a third party for inclusion in updated PEA
SIERRA BLANCA, TX, May 11, 2018 (GLOBE NEWSWIRE) -- Texas Mineral Resources Corp. (OTCQB: TMRC) an exploration
company targeting the heavy rare earths and a variety of other high-value elements and industrial minerals, is pleased to announce
that lithium assay results recently received confirm the presence of potentially significant amounts of lithium in the Round Top
rhyolite.
The new results are consistent with historical tests done at the Round Top deposit. In research done by the
Texas Bureau of Economic Geology in the late 1980s, fifteen samples of Round Top rhyolite were analyzed for lithium. Five of these
samples were taken from drill core, five from reverse circulation drill cuttings and five from the surface. Lithium values ranged
from a low of 390 ppm (parts per million) to a high value of 590 ppm with an average of 488 ppm.
In order to increase confidence in the lithium distribution within the Round Top rhyolite, 72 samples from
selected intervals from twelve drill holes were submitted to ALS Analytical Labs for lithium analysis. These samples were selected
with the intention of their submittal to a third party to be included in the Round Top resource base in a revised PEA. Values
ranged from a low of 380 ppm to a high value of 920 ppm with an average of 465 ppm.
During the drilling program conducted by TMRC in 2010-2011 lithium was not analyzed owing to its low price and
lack of interest at that time. Heap leach testing done by Resource Development International in 2012 reported a calculated head for
lithium at 406 ppm and 58% of it was recovered using 7.5% sulfuric acid at room temperature. Later testing done at the University
of Texas at El Paso determined that increasing acid strength also increased lithium recovery and that recoveries of 70% could be
accomplished using approximately 12% acid.
“At current prices, lithium represents a high potential revenue stream from the Round Top heap leaching
operation,” said TMRC CEO Dan Gorski. “At these reported grades and an assumed recovery of 70%, the planned 20,000 tonnes per
day heap leach operation could potentially produce 12,388 tonnes per year of lithium carbonate.” Recent transactions indicate
North American lithium carbonate pricing at approximately $12,000 per ton.
“In view of these values and recoveries lithium has potential to be the largest revenue stream from the potential
Round Top operation and developing a recovery process is now our highest priority,” commented Anthony Marchese, chairman.
“Given the extraordinary demand for lithium in the transportation and battery storage industry which is expected to last for years
to come, Round Top’s long estimated mine life positions TMRC as a key United States supplier of this increasingly valuable mineral
in addition to its heavy rare earth minerals which currently are supplied almost exclusively by China.”
About Texas Mineral Resources Corp.
Texas Mineral Resources Corp.'s primary focus is exploring and, if warranted, developing its Round Top heavy rare
earth and industrial minerals project located in Hudspeth County, Texas, 85 miles east of El Paso. The Company’s common stock
trades on the OTCQB U.S. tier under the symbol “TMRC.”
Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the U.S. Securities Act of 1933, as
amended, and U.S. Securities Exchange Act of 1934, as amended, including, but not limited to, statements recovery rates of lithium
from the Round Top leach solution being indicative of production potential, potential development and production of lithium at
Round Top, potential production rates and mining costs, potential revenue streams from such production, anticipated production
methods and results, anticipated mine life at Round Top, potential production of lithium de-risking project economics, Round Top
being a stable, long-term supply of Lithium, projected increased demand in the Lithium market and other similar statements. When
used in this press release, the words "potential," "indicate," "expect," "intend," "hopes," "believe," "may," "will," "if,
"anticipate," and similar expressions are intended to identify forward-looking statements. These statements involve known and
unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be
materially different from any future results, performance or achievements expressed or implied by such statements. Such factors
include, among others, risks related to the development of the Round Top project, up-scaling of extraction testing, risks related
to changes in future operating costs and working capital balance, risks related to mining results not matching preliminary tests
and risks related to the ability of TMRC to raise adequate working capital and continue as a going concern, as well as those
factors discussed under the heading "Risk Factors" in the Company's latest annual report on Form 10-K, as filed on November 30,
2017, and other documents filed with the U.S. Securities and Exchange Commission. Except as required by law, the Company assumes no
obligation to publicly update any forward-looking statements.
Texas Mineral Resources Corp. Anthony Marchese, Chairman E-mail: amarchese@tmrcorp.com
