If I believe this at face value...
Our pellets are available in various unit sizes, packaged in (4.2m) multi-layered, high-barrier, soft pack mylar bags and vacuum sealed with a nitrogen flush. Pellets are stored in our cold storages here on our farm until delivery straight to you.
...it implies about the best storage protocol one could hope for. And I have been brewing with 2020 hop pellets from YVH that I have kept frozen in their original mylar bags and honestly they have lost so little character over three years I haven't increased the amounts in my recipes at all.
Now, I wouldn't waste even cheap money on a "meh" hop like Belma but if one wanted some C hops on the cheap it might be worth a try - unless they're punitive with the shipping cost...
Cheers!