CBD, CBG and CBC are made by the hemp plant from the same starting molecule, CBGA. CBN forms later, when THC breaks down. Here's how each one forms and exactly how much of each is in Canna River products.
Canna River Blog – Cannabinoids
HHC is hexahydrocannabinol: a THC molecule with two extra hydrogen atoms, produced by hydrogenating CBD or delta-9 THC rather than extracted from hemp in any quantity. It exists as two epimers that behave differently, and published forensic work shows its urinary metabolite cross-reacts with standard THC panel tests. Canna River no longer makes or sells HHC products.