In this paper we obtain subordination, superordination and sandwich results for multivalent meromorphic functions, involving the iterations of the Cho-Kwon-Srivastava operator and its combinations. Certain interesting particular cases are also pointed out. ∞ k=1 a k−p z k−p (p ∈ N := {1, 2, 3,. .. }) (2) which are analytic in the punctured unit disc U := U \ {0}. Suppose that f and F are analytic in H. We say that f is subordinate to F, (or F is superordinate to f), write as f ≺ F in U or f (z) ≺ F(z)