 Shares of Eastman Chemical Co. EMN, 1.30 slumped 3.0 in premarket trading Tuesday, after the specialty chemicals company cut its third-quarter earnings outlook, citing a slowdown in demand and challenging logistics. The company now expects adjusted earnings per share for the quarter through September of approximately 2.00, compared with previous guidance of solid growth relative to year-ago adjusted EPS of 2.46; the FactSet consensus was for EPS 2.60. 