Monsanto Monsanto The Monsanto Company () was an American agrochemical and agricultural biotechnology corporation that existed from 1901 until 2018 when it was acquired by Bayer. It was headquartered in Creve Coeur, Missouri. Monsanto developed Roundup, a glyphosate-based herbicide in the 1970s, and became a major producer of genetically engineered crops. Monsanto was one of four groups to introduce genes into plants (1983), and was among the first to conduct field trials of genetically modified crops, (1987). It was one of the top 10 U.S. chemical companies until it divested most of its chemical businesses between 1997 and 2002, through a
Monsanto 40 years. In 1969 Monsanto dumped 45 tons of PCBs into Snow Creek, a feeder for Choccolocco Creek, which supplies much of the area's drinking water, and buried millions of pounds of PCB in open-pit landfills located on hillsides above the plant and surrounding neighborhoods. In August 2003, Solutia and Monsanto agreed to pay plaintiffs $700 million to settle claims by over 20,000 Anniston residents. As of November 2013, Monsanto was associated with nine "active" Superfund sites and 32 "archived" sites in the US, in the EPA's Superfund database. Monsanto was sued and settled multiple times for damaging the health