Willis TowersWatson Plc said in a Form 8-K filed April 8 that it does notbelieve that the U.S. Treasury's inversion rules would cause the of and WillisGroup Holdings plc to be treated as an inversion.

The merger closed Jan. 4.

The company said it also does not believe that the newintercompany debt rules would apply to any currently outstanding debt,including any debt issued in connection with the merger.

The merger is still expected to generate at least $75million in tax synergies.