Auman Chemicals is a chemical factory in the Chinatown district and is owned by Hun and the Purple Dragons. The place was found to be the location where Michelangelo's cheese balls are made. It is also revealed that Hun has been shipping chemicals to Shredder to assist him in making a mind control formula. Hun brings Shredder along with Rahzar, Fishface, and Tiger Claw here in exchange for gaining a higher position. When Casey Jones goes to investigate what he overheard from an earlier conversation and nearly captured, the Turtles arrive, leading to a fight between everyone. It's first appearance in the series is in Casey Jones VS. The Underworld. It was later destroyed by Karai, Shinigami and her Foot Ninja.
- The place is named after one of the series' producers, Brandon Auman