DC Extended Universe Wiki
DC Extended Universe Wiki

"The Joker and I? Our love bloomed in a highly toxic industrial processing plant."
Harley Quinn[src]

Ace Chemicals was a chemical manufacturing facility located in the heart of Gotham City's industrial district. It was notably the site of the creation of the Joker and where he fully transformed Harleen Quinzel into Harley Quinn.

Following a breakup with the Joker, Harley Quinn commandeered and crashed a vehicle into the facility, which caused a chain reaction that ignited and leveled the entire building.



Ace Chemicals was founded in Gotham City in 1921.[2] At some point in time, a separate branch of Ace Chemicals was established in Philadelphia.[3]

Birth of the Joker

"There. I was born down there."
Joker to Harley Quinn[src]

Sometime in the past, an unknown man fell into a vat of chemical solutions at the Ace Chemicals, where he resurfaced and transformed into the Joker, with white skin and chemically dyed green hair.

Birth of Harley Quinn

Joker with Harley after her rebirth at Ace Chemicals.

After Harleen Quinzel helped the Joker break out of Arkham Asylum, the Joker brought her to Ace Chemicals. There, he asked her to test her devotion to him by performing a trust fall into a vat of chemical solution below. She did so and was soon followed by the Joker who likewise dived in to retrieve her. The Joker pulled Quinzel to the surface, where it was revealed that her skin had been bleached white, much like that of the Joker's, and the two embraced and kissed.[4]

Shazam's training

Shazam tests his strength at an abandoned Ace Chemicals plant.

In 2018, when Billy Batson became Shazam, he tested his strength in the abandoned Philadelphia branch of the Ace Chemicals factory, being recorded by Freddy Freeman.[3]


Harley Quinn destroys Ace Chemicals.

Sometime later, Joker broke up with Harley Quinn, who took it very badly. After a long night of drinking, she decided to announce her emancipation to the entire world. As part of her plan she commandeered and crashed a vehicle into the plant, causing a chain reaction that leveled the building.[5]

Behind the scenes

  • In DC Comics, Ace Chemicals is noted as the birthplace of the Joker.
  • The sign on the front gate of Ace Chemicals says Janus Corp. which could mean that Janus may own Ace Chemicals.



External links

Agencies A.R.G.U.S. | CIA | DARPA | Department of Defense | FBI | NASA | NSA | NORAD
Companies AmerTek | Ace Chemicals | Big Belly Burger | Black Gold Cooperative | Blaze Comics | Cassidy Pub | Geschäft-Krieg | Ferris Air | Gotham City Wireless | Hanford Technologies | IHOP | Janus Corporation | Kord Industries | LexCorp | Queen Industries | Sheridan Dynamics | Shiruta Electronics | Sivana Industries | Stagg Industries | S.T.A.R. Labs | Van Criss Laboratories | Waresoft | Wayne Enterprises | Wiggins Game Company
Heroes Birds of Prey | Green Lantern Corps | Insurgency | Justice League | Justice Society | Maltese resistance | Shazam family | Task Force X | Unity of Earth | Wonder Men
Media Charlton News 5 | Coast City Ledger | Daily Planet | Fact Attack | Gotham Free Press | Gotham Times | KWUE | Metropolis News 8 | Metropolis Post | National Media Corporation | Smallville Sentinel | The Evergreen Sentinel | The Topeka Capital-Journal | United World News | WGBS News | WXPT
Military Amazonian Army | Atlantean soldiers | Atlantean court guards | Atlantean Guards | Corto Maltese Armed Forces | Darkseid's Elite | Imperial German Army | Sapphire Guard | Sword of Rao | U.S. Air Force | U.S. Army | U.S. National Guard | U.S. Navy | Warrior Guild | Xebelian soldiers
Villains Anatoli Knyazev's security contractors | Apokoliptian priests | Bertinelli crime family | Black Clad | Black Mask's criminal organization | Falcone crime family | Jesse Kane's crew | Joker's gang | Noble Diamond raiders | Regime | Seven Deadly Sins | Yakuza