Lets just say mining.
So your looking to tap into Polands mineral reserves yes. Where i live in Dolnoslaskie the amount of sand stone utilised in local and inner city buildins is phenominal, this is a direct result of the local availability of this mineral..its mined from the Sudetan Mountain range. Also it appears that every family and their dog are into the grave stone business. I actually have a 20 hectare plot for sale with a guaranteed granite resource of 7 million tonnes.
I am assuming you have an idea/proof for a new resource or miniral.