What sort of processing are they doing? It seems like processing those materials to be pure and consistent could be pricey. Maybe not a perfect comparison, but raw silicon costs $1-2 per kg, but can cost several hundred per kg once processed into wafers.
Because that calculation assumes the existence of a kitchen to make the soup, energy to heat the soup etc. If you ignore what the actual costs of production are it seems like everyone is using an extreme markup.
