Year-over-year total releases
Reported on-site TRI releases in pounds (lbs), grouped by reporting year.
Facility detail
HK RESEARCH CORP
908 OLD LENOIR RD, HICKORY, NC, 28601
Parent company: IP CORP
Carcinogen
— EPA classifications across all reporting years
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 | Acetone | Styrene | Methyl methacrylate | Diisocyanates | 4,4'-Methylenedi(phenyl isocyanate) | Total (lbs) |
| 2024 | — | 6,550 | 2,235 | — | — | 8,785 |
| 2023 | — | 7,726 | 1,943 | — | — | 9,669 |
| 2022 | — | 8,228 | 2,311 | — | — | 10,539 |
| 2021 | — | 6,664 | 2,164 | — | — | 8,828 |
| 2020 | — | 6,491 | 2,330 | — | — | 8,821 |
| 2019 | — | 449 | 522 | — | — | 972 |
| 2018 | — | 1,634 | 428 | — | — | 2,062 |
| 2017 | — | 1,801 | 379 | 1 | — | 2,181 |
| 2016 | — | 1,801 | 379 | 1 | — | 2,181 |
| 2015 | — | 2,842 | 273 | 1 | — | 3,116 |
| 2014 | — | 1,229 | 768 | 1 | — | 1,998 |
| 2013 | — | 1,229 | 251 | 1 | — | 1,481 |
| 2012 | — | 1,182 | 240 | 1 | — | 1,423 |
| 2011 | — | 1,182 | 196 | 5 | — | 1,383 |
| 2010 | — | 907 | 184 | 5 | — | 1,096 |
| 2009 | — | 820 | 132 | 5 | — | 957 |
| 2008 | — | 820 | 126 | 5 | — | 951 |
| 2007 | — | 1,090 | 194 | 5 | — | 1,289 |
| 2006 | — | 1,090 | 295 | 7 | — | 1,392 |
| 2005 | — | 752 | 194 | 19 | — | 966 |
| 2004 | — | 684 | 162 | 188 | — | 1,034 |
| 2003 | — | 612 | 151 | 186 | — | 949 |
| 2002 | — | 489 | 260 | 200 | — | 949 |
| 2001 | — | 2,064 | 164 | 154 | — | 2,382 |
| 2000 | — | 2,440 | 142 | 132 | — | 2,714 |
| 1999 | — | 2,224 | 161 | 112 | — | 2,497 |
| 1998 | — | 1,075 | 470 | 18 | — | 1,563 |
| 1997 | — | 995 | 940 | 15 | — | 1,950 |
| 1996 | — | 877 | 1,720 | 16 | — | 2,613 |
| 1995 | — | 1,000 | 250 | 5 | — | 1,255 |
| 1994 | — | 1,000 | — | — | 5 | 1,005 |
| 1993 | 75,684 | 1,000 | — | — | 5 | 76,689 |
| 1992 | 80,995 | 1,000 | — | — | 5 | 82,000 |
| 1991 | 79,308 | 500 | — | — | — | 79,808 |
| 1990 | 72,071 | 500 | — | — | — | 72,571 |
| 1989 | 73,913 | 500 | — | — | — | 74,413 |
| 1988 | 96,844 | — | — | — | — | 96,844 |
▎ 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.