Pitaya Laboratories is a scientific corporation and location that exists in Ex Dynamis Chaos.  It is first mentioned in episode 2: Magnetic Mayhem when The Metal spots the lab's logo on Kavi's electromagnetic roller blades.  The first actual appearance is episode 6: A Touch of Tea and a Hint of Science, where The Metal and Lord Pitaya fought for progression in a tournament and ended in a draw as the building collapsed in on them.  It was rebuilt and later seen again in episode 12: Semi Finals.  The Lab, as it is sometimes refereed to, is owned and operated by Pitaya.