| Award | SODIUM HYPOCHLORITE SOLUTION-DEP (BWSO) RENEW #1 | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $3.8M | Renewal | Dec 31, 2024 | 85721B0175001R001 |
| Award | CHLORINE, LIQUID - DEP | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $23.1M | Competitive Sealed Bids | Oct 27, 2023 | 85723B0123001 |
| Award | Caustic Soda (Sodium Hydroxide) for the City of New York, Department of Environmental Protection at various water treatment facilities (WTF) | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $28.6M | Competitive Sealed Bids | May 25, 2023 | 85723B0078001 |
| Award | SODIUM HYPOCHLORITE - DEP ( CATSKILLS WTF) | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $1.6M | Competitive Sealed Bids | Jun 9, 2020 | 8572000087 |
| Award | SODIUM HYPOCHLORITE SOLUTION - DEP (BWSO) | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $1.1M | Renewal | Jun 4, 2019 | 8571600297 |
| Award | LIQUID CAUSTIC SODA - DEP (BWT) | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $4.7M | Renewal | Feb 8, 2019 | 8571600126 |
| Award | CHLORINE: LIQUID (D.E.P) | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $9.8M | Competitive Sealed Bids | Jun 17, 2005 | 857500834 |
| Award | SOLUTION, SODIUM HYPOCHLORITE | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $14.5M | Competitive Sealed Bids | Sep 24, 2004 | 857401071 |
| Award | LIQUID CAUSTIC SODA (W.W.T.P.) | Citywide Administrative Services | Kuehne Chemical Company, Inc. | $4.4M | Competitive Sealed Bids | Sep 16, 2004 | 857401075 |