The Champion pellets look like 1990s products if they are supplied in a plastic dispenser rather than a tin (earlier Champion brand pellets were supplied in tins). They were made by L.J. Cammel, based in Merseyside, North West England and are a pellet manufacturer that I don't believe are still trading as I haven't seen their adverts for some time. They sold pellets all around the world but unfortunately the various brands I tried did not perform all that well.
No idea about the Viri as that is a new on on me. If the EEC changed their name in 2009, then they are no later than 2009 and may well originate from the same Cammel factory.
John
Currently looking for Baikal Makarov pistols with the following prefixes to the serial number: 98, T01,
Prefer boxed or cased but will consider loose examples too.