Table of Contents AZZ INC. NOTES TO CONSOLIDATED FINANCIAL STATEMENTS Note 17 – Selected Quarterly Financial Data (Unaudited) Schedule II AZZ Inc. Valuation and Qualifying Accounts and Reserves (In thousands) As discussed in Note 1, an error was identified in connection with adoption of ASC 606, and this error has been corrected in the fourth quarter of fiscal 2019 as an out of period adjustment. This adjustment did not have a material impact to net sales, gross profit or net income for any period presented herein. Quarter ended May 31, 2018 August 31, 2018 November 30, 2018 February 28, 2019 (in thousands, except per share data) Net sales $ 262,236 $ 222,787 $ 239,516 $ 202,548 Gross profit 58,705 46,904 49,755 43,257 Net income 15,718 11,244 15,395 8,851 Basic earnings per share 0.60 0.43 0.59 0.34 Diluted earnings per share 0.60 0.43 0.59 0.34 Quarter ended May 31, 2017 August 31, 2017 November 30, 2017 February 28, 2018 (in thousands, except per share data) Net sales $ 205,283 $ 196,329 $ 208,158 $ 200,660 Gross profit 47,382 43,800 31,117 38,010 Net income 12,062 9,786 (166 ) 23,487 Basic earnings (loss) per share 0.46 0.38 (0.01) 0.91 Diluted earnings per (loss) share 0.46 0.38 (0.01 ) 0.90 Year Ended February 28, 2019 February 28, 2018 February 28, 2017 Allowance for Doubtful Accounts Balance at beginning of year $ 569 $ 347 $ 264 Additions (reductions) charged or credited to income 2,153 3,290 48 (Write offs) recoveries, net (451 ) (3,084 ) 20 Other — 16 11 Effect of exchange rate (4 ) — 4 Balance at end of year $ 2,267 $ 569 $ 347 60