Delta Sigma Theta Sorority Inc. was founded on January 13, 1913 by 22 collegiate women at Howard University in Washington, D.C. Delta Sigma Theta is an organization of college-educated women committed ...
Sigma Lithium Corporation engages in the exploration and development of lithium deposits in Brazil. It holds a 100% interest in the Grota do Cirilo, Genipapo, Santa Clara, and São José properties ...