^Mallinckrodt agrees deal to exploit Irish tax base. Irish Independent. 8 April 2014 [2021-01-15]. (原始内容存档于2022-03-04). Pharma firm Mallinckrodt has agreed to buy Questcor Pharmaceuticals for $5.6bn (€4bn) to add specialty drugs in the latest industry deal that moves a US company to Ireland for a lower tax rate. Mallinckrodt, with a registered headquarters in Dublin and run from Hazelwood, Missouri, will pay $86.08 a share for Anaheim, California-based Questcor.