Published: October 13, 2023 |

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Standard Lithium Ltd. said it has drilled and sampled, to the best of its knowledge, a new highest confirmed lithium grade brine in North America, with a grade of 663 mg/L lithium. The results reflect lithium sample analyses from a newly drilled well from the company’s significant expansion work in the East Texas Smackover region.

“We continue to be very excited by the quality and scale of the lithium brine assets we’re adding in East Texas. The lithium sample analysis from a newly-drilled well delivered, to the best of our knowledge, a new highest-grade lithium brine concentration in North America and confirmed that we are securing the highest-grade lithium brine resource outside of Chile and Argentina,” said Dr. Andy Robinson, president and COO of Standard Lithium.

“We continue to expand our footprint in the East Texas Smackover and de-risk the opportunity with additional drilling, sampling and definition work,” added Robinson.

“East Texas is a significant addition to our two more advanced projects in Arkansas, the Phase 1A and South West Arkansas Projects. We expect our East Texas landholdings to form a substantially larger and higher-grade lithium brine project for future production. Standard Lithium will continue to progress its portfolio of projects to help meet U.S. demand for lithium over the next decade,” concluded Dr. Robinson.

The Smackover Formation represents North America’s premier lithium brine asset, with grades comparable to certain resources in South America. As detailed in the company’s definitive feasibility study, results for the Phase 1A project in El Dorado, Arkansas, target production of 5,400 tonnes per annum (tpa) of battery quality lithium carbonate over a 25-year operating life, with an average lithium grade of 217 mg/L. The preliminary feasibility study for the company’s South West Arkansas Project outlines plans for at least 30,000 tpa of battery quality lithium hydroxide over a 20-year operating life, with an average reported lithium grade of 437 mg/L.

Lithium grades in the company’s projects indicate an increasing trend moving westward from Phase 1A to the South West Arkansas Project and finally, into East Texas. In Standard Lithium’s experience, higher lithium grades in brine are directly correlated with lower capital and operating expenses per tonne of lithium produced, thereby enhancing the economic viability of potential projects.

Standard Lithium is a leading near-commercial lithium development company focused on the sustainable development of a portfolio of lithium-brine bearing properties in the United States. The company prioritizes brine projects characterized by the highest-grade resources, robust infrastructure, skilled labor, and streamlined permitting. The company aims to achieve sustainable, commercial-scale lithium production via the application of a scalable and fully-integrated direct lithium extraction and purification process. The company’s flagship projects, the Phase 1A Project and the South West Arkansas Project, are located on the Smackover Formation in southern Arkansas near the Louisiana state line, a region with a long-standing and established brine processing industry. The company has also identified a number of highly prospective lithium brine project areas in the Smackover Formation in East Texas and began an extensive brine leasing program in the key project areas. In addition, the company has an interest in certain mineral leases located in the Mojave Desert in San Bernardino County, California.

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