Former U.S. Assistant Secretary of State for Energy Resources Frank Fannon Joins Standard Lithium Advisory Board EL DORADO, Ark., April 05, 2021 (GLOBE NEWSWIRE) -- Standard Lithium Ltd. (“Standard Lithium” or the “Company”) (TSXV: SLL) (OTCQX: STLHF) (FRA: S5L), an innovative technology and lithium project...