TETRA Technologies, Inc. announced the completion of its maiden inferred bromine and lithium brine resource estimation report for its brine minerals leased acreage in the Smackover Formation in Southwest Arkansas. The technical report summary, which is available in its entirety on TETRA's website Investor Relations - Presentations, reflects the following: The brine resource underlying the approximately 40,000 gross acres where TETRA holds the bromine mineral rights is estimated to contain an inferred resource of 5.25 million short tons (4.763 million metric tonnes) of elemental bromine; and The brine resource underlying the approximately 5,000 gross acres where TETRA holds lithium mineral rights that are not subject to a lithium option agreement with Standard Lithium, is estimated to contain an inferred resource of 44,000 short tons (40,000 metric tonnes) of elemental lithium. Using a conversion factor of 5.323 to convert elemental lithium to Lithium Carbonate Equivalent (LCE) it is estimated to contain 234,000 short tons of LCE (212,000 metric tonnes of LCE).

The maiden TETRA bromine and lithium brine resource estimations are presented as total resource within the Upper Smackover Member underlying the TETRA property. Resource estimations were completed and reported using cutoffs of 250 mg/liter bromine and 50 mg/liter lithium.