A seller from Russia is still offering ORWO chemicals on eBay. These allow you to carry out the development of all ORWO UT films using the original process.
http://www.ebay.de/itm/Chemikalienset-für-die-Entwicklung-der-Farbumkehrfilme-9165-for-ORWO-UT-18-UT-21-/141903560052?hash=item210a1c7d74:g:BqMAAOSw5dNWtEQB
Just have a quick look or check out their website.