I've never heard of an off brand or knockoff that uses a Kubota diesel, those are the gold standard in small equipment. It's without doubt a Clark Bobcat, just not one meant for sale in the US.
Just because some piece of equipment has a Kubota engine doesn’t mean it is for the US. If you do a Google search you will find that Kubota will NOT even sell you parts for a gray market tractor. Here is their actual policy.
http://kubota.com/priorproduct/GrayMarketFindOut.aspx
"Please be advised that since April 30, 1997, the importation, distribution and sale in the United States of Kubota "gray market" units under 50 PTO horsepower has been prohibited by a General Exclusion Order of the United States International Trade Commission."
There are too many OSHA requirements for these imported machines. If dealers supported these machines by selling parts, they would be risking extreme liability.
The whole gray market thing is part safety compliance, part emissions requirement, and a whole lot more about money. There is nothing illegal about buying a gray market machine, but most do not meet current US safety code regarding rops protection, pto guards, and safety labels as US requirements differ from Japanese requirements. Kubota and other Japanese manufacturers want their products to be sold through licensed distributors so there is a nice cash flow back into their pockets. The gray market machines short circuits the cash flow so legitimate dealers are threatened with being dropped if even a whiff of gray market support is found out. It is a crazy world.
Yanmar, Kubota, and Mitsubishi are three of the biggest gray markets machines around, but there are others. You must be careful, as the above manufacturers have specific models that they do import to the US.
Keep in mind most all gray market machines DO NOT meet US Safety and OSHA requirements, so what happens if your employee gets hurt or your local state or OSHA inspector finds out about this?