BoooEither custom-made or specific to the Japan aftermarket. They got a few parts that are being made over there that you don't see in the US or anywhere else.
Those look wider. Also there is no indentations for holes to bolt them in that we can in the photo.They look like the +80mm H3 flares you can find on ebay, from Kazakhstan. Maybe they changed the mounting to go from inside, and filled the exterior fastener area.
Fenders flares for Hummer H3 +80mm | eBay
High quality! Made of fiberglass! Painted in black.www.ebay.com