These have been listed for sale on eBay as far back as April, 2019...and possibly earlier. Back then, Zpost member Semp inquired for information and got this:
Reached out to the company and this is the response I got:
"The coating it comes with is just a protective coating that will need to be sanded down before your shop can primer/paint. Doesn't come with any tabs, but you can literally just bolt it right onto the car. They don't do the pre-drilled holes just incase the car has been in an accident and it has to be custom fit."
Here's the thread from back then:
https://www.zpost.com/forums/showthread.php?t=1584307