May 28, 2017

To: All Nucor Customers

Re: 2016 Recycled Content of Nucor Steel Mill Products

North America’s 17.56

u

–

2016

Product Group Average Recycled ContentNucor Bar Products 94.6%Nucor Engineered Bar Products 86.2%Nucor Beam Products 76.8%Nucor Plate Products 66.2%Nucor Sheet Products 60.2%

89.3%Total Nucor Steel Combined 79.2%Vulcraft Structural Products 94.6%Vulcraft / Verco Decking 60.6%Nucor Grating / Fisher-Ludlow Grating 94.6%Nucor Building Group 79.2%Harris Rebar 94.6%Nucor Fastener Products 94.6%Nucor Wire Products 94.6%Nucor Cold Finish 86.2%

– 2009

on “

Page 2 of 3

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2016

96.5% 0.2% 81.4% 15.1%95.0% 1.5% 88.0% 7.1%96.5% 0.2% 89.7% 6.8%95.7% 0.8% 79.0% 16.7%96.5% 0.2% 63.6% 32.9%99.8% 0.2% 96.5% 3.3%96.3% 0.2% 80.5% 15.7%96.5% 0.2% 96.5% 0.0%96.5% 0.2% 90.6% 5.9%68.0% 32.4% 50.7% 19.8%

.

Products – Products

2016 . Products

86.4% 10.1% 62.1% 24.3%78.9% 17.6% 58.8% 20.0%92.8% 3.7% 63.2% 29.6%

–

2016 Products

81.1% 15.4% 28.2% 52.9%55.2% 41.3% 37.2% 18.0%41.4% 55.1% 25.3% 16.0%57.7% 38.8% 22.6% 35.1%78.6% 17.9% 33.5% 45.1%

93.8% 6.2% 83.7% 10.1%

84.1% 15.9% 29.2% 54.8%

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.

2016 Products

71.3% 25.2% 55.9% 15.5%59.6% 36.9% 24.9% 34.7%96.5% 0.2% 96.5% 0.0%

–

using the same EAF’s.

2016 Products

90.5% 6.0% 80.8% 9.7%

41.4% 55.1% 25.3% 16.0%