Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HEADWAY TECHNOLOGIES INC.
497 S. HILLVIEW DRIVE, MILPITAS, CA, 95035
Parent company: SAE MAGNETICS (HK) LTD
Top chemical totals
The 10 chemicals with the highest cumulative on-site releases in pounds (lbs) across all available years.
Full release table
Rows are years. Columns show the five highest-total chemicals across all years plus each year's total release volume.
| All values in pounds (lbs) | ||||||
|---|---|---|---|---|---|---|
| Year | N-Methyl-2-pyrrolidone | Total (lbs) | ||||
| 2024 | 4,497 | 4,497 | ||||
| 2023 | 4,391 | 4,391 | ||||
| 2022 | 7,767 | 7,767 | ||||
| 2021 | 7,155 | 7,155 | ||||
| 2020 | 6,241 | 6,241 | ||||
| 2019 | 6,873 | 6,873 | ||||
| 2018 | 6,484 | 6,484 | ||||
| 2017 | 6,291 | 6,291 | ||||
| 2016 | 5,382 | 5,382 | ||||
| 2015 | 4,952 | 4,952 | ||||
| 2014 | 6,464 | 6,464 | ||||
| 2013 | 6,744 | 6,744 | ||||
| 2012 | 7,021 | 7,021 | ||||
| 2011 | 6,518 | 6,518 | ||||
| 2010 | 7,867 | 7,867 | ||||
| 2009 | 5,627 | 5,627 | ||||
| 2008 | 10,233 | 10,233 | ||||
| 2007 | 6,620 | 6,620 | ||||
| 2006 | 5,218 | 5,218 | ||||
| 2005 | 6,106 | 6,106 | ||||
| 2004 | 9,805 | 9,805 | ||||
| 2003 | 9,371 | 9,371 | ||||
| 2002 | 11,901 | 11,901 | ||||
| 2001 | 1,530 | 1,530 | ||||
| 2000 | 7,468 | 7,468 | ||||
| 1999 | 19,625 | 19,625 | ||||
| 1998 | 26,960 | 26,960 | ||||
| 1997 | 13,176 | 13,176 | ||||
| 1996 | 577 | 577 | ||||
| 1995 | 457 | 457 | ||||
▎ Facilities report to EPA's TRI once they manufacture, process, or use a listed chemical above set thresholds. Once that threshold is crossed, they must report actual releases regardless of size — so a small number reflects genuine low-level discharge, not a data error.