The Chemical Safety Grates were custom vats designed for Ace chemicals by Wayne Security.Flaws in the previous year's chemical grates resulted in a clown villain being created once every three months.Wayne security designed new grates made out of an acid proof alloy. However, the Wayne security R&D team did not receive the news that Ace chemical was not interested in mechanical grates wanted to upgrade to a force field system.Royce Kane Decided to take ACE chemicals business LexCorp closing their account at Wayne security which was worth $75 million annually.