It is a small Chinese company and it is only doing business in China as far as I know. I find them on an ebay-like chinese APP.
They were selling replacement cases and bracelet of those trending models of PP, AP, VC and Rolex. Some people in China will even buy OEM dial and movement and ask for a custom-made case and bracelet, which cost only a fraction of the market price.
I know it is controversial but it is what it is.