(January 11, 2018, 12:17 PM EST) -- CHICAGO — A stonework company that transferred away from using union members and started employing more highly skilled setters and finishers did not owe a multiemployer pension fund a withdrawal liability, a Seventh Circuit U.S. Court of Appeals panel ruled Jan. 8, finding that the fund waived its statutory-interpretation argument when it failed to raise it during arbitration (Laborers’ Pension Fund, et al. v. W.R. Weis Company, Inc., Nos. 16-2079 and 16-2944, 7th Cir., 2018 U.S. App. LEXIS 447)....