Utilize the input text as a context reference, choose the right relationship between 'Nucor' and 'Steel' from the options.
Options: creator, product/material produced, headquarters location, chairperson

I want to take a moment to recognize Nucor Steel Arkansas and Nucor Castrip Arkansas, for going more than one year without a recordable injury, an impressive accomplishment for one of our larger more complex steel mills.
product/material produced