Texas Rare Earth Resources Corporation

Rare Earth Deposits & Mining

Texas Rare Earth Resources Corp.’s (TRER’s) flagship Round Top project is located in Hudspeth County, Texas, approximately 85 miles southeast of El Paso. TRER holds 19-year renewable leases from the State of Texas on 950 acres encompassing Round Top and additional prospecting permits on adjacent areas covering an additional 9,345 acres. Currently, TRER is focused on the exploration and development of rare earth elements at Round Top. Management has concluded that the Round Top project has the following competitive advantages:

1. Ease of Access to Infrastructure (Electricity, Highway, Natural Gas, Rail, Water)
2. Friendly Resource Development Jurisdiction
3. Located Entirely on State Land (No BLM, No Forest Service)
4. Extensive Management Experience (Project Development, Hydro-Metallurgy, Mine Production/Operation)
5. Large, Porphyry-Style REE Deposit (Massive Tonnage/Economies of Scale, Rich in CREE/HREE)
6. Favorable Mineralization (Yttrofluorite & Yttrocerite, Evenly Disseminated, Minimal Stripping Required)

The Round Top project, Texas Mineral Resourcess Corp.’s (TMR’s) flagship project, is one of five rhyolite laccoliths known as the Sierra Blanca Peaks that lie within the Texas Lineament Zone or Trans-Pecos trend. The Texas Lineament Zone is a northwest trending structural zone which formed as a result of Laramide thrust faulting followed by basin and range normal faulting. All five Sierra Blanca laccoliths were intruded into Cretaceous age sedimentary strata. McAnulty (1980) suggests the laccoliths were emplaced during Oligocene or early Miocene time.

Round Top is an asymmetrical rhyolite laccolith that increases in thickness from north to south. The laccolith is concordantly floored with Cretaceous age sediments of the Washita Group. Drilling conducted by Cyprus Minerals determined the two formations that floor the intrusive are the Del Rio and Buda Limestone Formations. Recent drilling conducted by TMR confirms the floor of the intrusive is the Del Rio and Buda Limestone and the intrusion is offset by faulting.

Structure Geologic modeling based on historical drilling data and drilling conducted by TMR shows the floor of the intrusion dips to the south. This southward dipping floor causes the rhyolite body to increase in thickness to the south. Drilling on the west side of the mountain suggests the rhyolite intrusion could extend below the surface expression of Round Top peak. In addition, the model shows the intrusion is displaced by fault structures.

An aeromagnetic survey conducted by TMR shows the Round Top intrusion follows a northwest-striking structure. This structure extends beyond Round Top to the northwest and southeast of the mountain. The magnetic survey also revealed a buried intrusive body to the southeast of Round Top between Little Blanca and Sierra Blanca peaks. The Round Top intrusion was most likely structurally controlled and was probably intruded from a rhyolite sill extending from a feeder dike located between the Sierra Blanca Peaks.