We have been distributing Panela for 10 years, and can give you plenty of information. Message me.
Not sure on the EU regulations but a lot of people are using it all over the USA and worldwide.
Not sure why it would not be rum though? It’s simply dehydrated cane juice from sugar cane. No different than molasses would be a biproduct. Molasses is used in something like 97% of rum out there so maybe folks want an alternative, and don’t live in cane country (like us in Florida that can source fresh pressed juice from our farm) that want something different. Cane juice goes bad in 24 hours so Panela is the closest alternative. Just my $.02