Bayer AG's Monsanto unit won a legal victory as a Washington state appeals court overturned a $185 million verdict related to chemical contamination at a school. This decision, marking the company's second major legal win recently, involved a lawsuit from 2021 where three teachers claimed brain damage from exposure to PCBs, banned chemicals Monsanto produced until 1977. The court ruled the lower court improperly applied Missouri laws, allowing claims to be filed decades later. Bayer faces around 200 similar claims, and this ruling could influence future trials and Bayer's financial exposure in PCB contamination claims, potentially surpassing $2.5 billion.