Rohm and Haas Company is a US manufacturer of specialty chemicals for end use markets such as building and construction, electronic devices, packaging, household and personal care products.

Röhm improved the unhygienic working conditions in tanneries by replacing dog feces as a leather mordant with enzymes harvested from the pancreas of slaughtered animals.

[3] The company again grew rapidly as World War II approached, as it manufactured Plexiglas acrylic, a transparent plastic which was needed for aircraft canopies.

][citation needed] Rohm and Haas attracted national headlines in 1985 as an example of the Internal Revenue Service's ineptitude after the company received an IRS demand for a $46,807.37 penalty because of a 10-cent discrepancy in the reporting of payroll taxes for 1983.

Over a course of five months, the company spent many hours trying to explain their case to the IRS, tasked five accountants to investigate and wrote seven letters to the agency before the penalty was finally dropped.

[8] On July 6, 2004, the Environmental Protection Agency charged Rohm and Haas with violating the Clean Air Act after inspecting its facility in Louisville, Kentucky.

[12] On April 25, 2006, Rohm and Haas, and other defendants, were sued in Philadelphia for failing to prevent toxic spills, to employ adequate groundwater practices, and to warn residents of any potential presence of underground contamination.

The Northwest Herald published a six-piece investigative story on the lawsuits and residents, claiming to reveal a blatant "mishandling" of the entire affair on the part of local health officials and Rohm and Haas.

In 1969, union members with the Oil, Chemical, & Atomic Workers went on strike at the Rohm and Haas Deer Park facility in Harris County, Texas.