The 'Tri Variants' made by PBP in Spain always have the tell-tale 'moulding scar'! Whilst the European released figures made in Macau have the 'Taiwan' or 'Hong Kong' area 'smoothed over', as they were later adaptions of earlier figures! (French releases often state 'Macao' on the figures themselves too!)
The early 'Pal Variants' are sometimes just 'Hong Kong' variants sent only to Europe! ('Orange haired' Luke Bespin is one such variant!) The Tri Squid Head figure can either have 'Hong Kong' or a 'smoothed over' area. In fact most are 'Hong Kong' examples moulded in a lighter plastic with the distinctive 'green tinted cape' and 'white skirt'!
Thus... it is possible to confirm that about 90% of European variants have no 'Country Of Origin'/'Place Of Manufacture' on them!
Though many other variants lack COO/POM markings too!