Singapore's International Container Terminal Services Inc (ICTS) said on Tuesday its subsidiary plans to acquire up to 55 percent of a Pakistan container cargo terminal operator. ICTS's unit ICTSI Mauritius Ltd is intending to buy 35-55 percent of Pakistan International Container Terminal Ltd, whose terminal is located at the Karachi port, it said in a statement.The company did not say how much it will pay for the acquisition, but noted that the Pakistan firm handled a total of 669,806 twenty-foot equivalent container units for the year ended June 30.