 EL DORADO, Ark., Oct. 12, 2021 GLOBE NEWSWIRE -- Standard Lithium Ltd. Standard Lithium or the Company TSXV: SLI NYSE: SLI FRA: S5L, an innovative technology and lithium project development company, reports the positive results of a Preliminary Economic Assessment PEA for the Companys South-West Arkansas SWA Lithium Project the Project; previously called the Tetra Project; See Company News Release dated May 17th 2021. 