Primary Metals Manufacturing
This section examines how TRI chemical wastes are managed within the primary metals manufacturing sector (defined as facilities reporting their primary NAICS code as 331).
This map shows the locations of the primary metals manufacturing facilities that reported to TRI for 2022, sized by their releases. Click on a facility for details on its TRI reporting.
Primary Metals Manufacturing Facilities Reporting to TRI, 2022
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For 2022, 1,434 facilities in the primary metal manufacturing sector reported to TRI. The sector includes iron and steel mills; facilities producing steel products such as pipes, plates, and wire; foundries; and facilities that make nonferrous metal and metal products. The chart below shows the number of facilities and the TRI releases by primary metals subsector for 2022. While iron and steel mills account for few (10%) of the sector’s facilities, this subsector reports more releases than any other subsector. Conversely, foundries account for the most (38%) facilities reporting to TRI in the sector but only report 8% of the releases.
This page was published in March 2024 and uses the 2022 TRI National Analysis dataset made public in TRI Explorer in October 2023.