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News Release Exhibit 99.1 NUCOR® Nucor Reports Record Quarterly Earnings for the Third Quarter of 2021 CHARLOTTE , N.C. - October 21 , 2021 - Nucor Corporation ( NYSE : NUE ) today announced record quarterly consolidated net earnings of $ 2.13 billion , or $ 7.28 per diluted share , for the third quarter of 2021. By comparison , Nucor reported consolidated net earnings of $ 1.51 billion , or $ 5.04 per diluted share , for the second quarter of 2021 and $ 193.4 million , or $ 0.63 per diluted share , for the third quarter of 2020 . In the first nine months of 2021 , Nucor reported consolidated net earnings of $ 4.58 billion , or $ 15.34 per diluted share , compared with consolidated net earnings of $ 322.6 million , or $ 1.06 per diluted share , in the first nine months of 2020 . " During the third quarter , we once again achieved record results , with earnings per share of $ 7.28 . Our third quarter performance surpassed our previous record of $ 5.04 set in the second quarter of this year and almost matched our full year earnings record of $ 7.42 that we set back in 2018 , " said Leon Topalian , Nucor's President and Chief Executive Officer . " Congratulations to the entire Nucor team for delivering the phenomenal results we have seen so far this year while staying focused on our Safety goals . I am incredibly proud of our team and what we have accomplished . ” Selected Segment Data Earnings ( loss ) before income taxes and noncontrolling interests by segment for the third quarter and first nine months of 2021 and 2020 were as follows ( in thousands ) : Steel mills Steel products Raw materials Corporate / eliminations Three Months ( 13 Weeks ) Ended Oct. 2 , 2021 $ 3,116,539 368,595 161,870 ( 777,897 ) Oct. 3 , 2020 $ 205,152 186,976 6,232 ( 107,942 ) $ 2,869,107 $ 290,418 Nine Months ( 39 Weeks ) Ended Oct. 2 , 2021 $ 6,606,320 839,737 505,248 ( 1,758,204 ) $ 6,193,101 Oct. 3 , 2020 $ 512,082 502,409 ( 3,068 ) ( 393,651 ) $ 617,772 The steel mills segment and the steel products segment both set a record for the highest quarterly earnings before income taxes and noncontrolling interests in the third quarter of 2021 . Financial Review Nucor's consolidated net sales increased 17 % to $ 10.31 billion in the third quarter of 2021 compared with $ 8.79 billion in the second quarter of 2021 and increased 109 % compared with $ 4.93 billion in the third quarter of 2020. Average sales price per ton in the third quarter of 2021 increased 22 % compared with the second quarter of 2021 and increased 86 % compared with the third quarter of 2020. A total of 7,172,000 tons were shipped to outside customers in the third quarter of 2021 , a 4 % decrease from the second quarter of 2021 and a 13 % increase from the third quarter of 2020. Total steel mill shipments in the third quarter of 2021 decreased 3 % as compared to the second quarter of 2021 and increased 16 % as compared to the third quarter Page 1 of 9 Nucor Executive Offices : 1915 Rexford Road , Charlotte , North Carolina 28211 Phone 704-366-7000 Fax 704-362-4208 www.nucor.com