This is a new whisky in Ontario at least. The producer is listed as Potter's Distillers Ltd, Calgary. Potter's used to be a facility in Britsh Columbia, then issued whiskies from existing stocks as a non-distiller, then possibly issued whiskies (under its name and the Century name) sourced outside, then was sold I understand, possibly to one of the existing distilleries in Alberta.
This whisky is very good in the Canadian way: it has lots butter, clean light vanilla and spicy hints which may denote some whisky distilled at low proofs from rye. It sells here for $20 plus so worth the money for the age range stated. A cardboard neck collar states "Century Reserve is proud to introduce the Custom Blend, created by our master blender from premium whisky aged 15 to 25 years".