Sorry, Siegfried, but those purity numbers are superior to ZEN's, at least to this point in time. ZEN has dropped its purity to ~99.9%, and as their own impurity chart demonstrated, they are below 99.9, even without a full list of contaminants. And that number comes from a nice, manageable sample size. When the full bulk sample is finally run, you really don't know what the final numbers will be.