Lee Chemicals is a large chemical plant built near a river and a dam with a hydroelectric power plant. Owned by Lawrence Lee Jr., who was tracked by the police for tax evasion for months. Parisa Terdiman, one of the police officers who have been investigating him in a while, asks the player to acquire evidence for her, such that enough information could get Lee arrested.

More information here:
https://teardown.fandom.com/wiki/Lee_Chemicals