(June 11, 2018, 2:38 PM EDT) -- WILMINGTON, Del. — The Internal Revenue Service gets the facts wrong and misreads the law in arguing for a reduced interest rate on a tax refund to former Chapter 11 debtor W.R. Grace & Co., the company said June 1 in the IRS’s appeal in Delaware federal court (United States v. W.R. Grace & Co., et al., No. 17-cv-1588, D. Del.)....