Hello G,

In addition to your list of experts and their involvement in ZEN in your post, there is another important name that has been involved with ZEN graphite from the beginning. It's Dr. Conly L, Professor of Geology at Lakehead University (Thunder Bay). Check out the video in the link below for his good words for ZEN graphite purity.

http://investorintel.com/graphite-graphene-intel/geology-professor-confirms-zenyattas-graphite-deposit-special-rare-will-command-higher-prices/

Recently, Dr. Conly has been awarded a large grant by the National Research Council (of Canada) to do further research on ZEN graphite to explore its full potential. This is a prestigeous award from Canada's national reserach institution.

Also, ZEN Press Releases have indicated exceptional purity has been achieved by laboratory testing...99.96% would imply 0.04% impurity which include all impurities (all, including Sulphur). Hence, by deduction, S content would be less than 0.04%.

Some sulphure contents are published for flake graphite from companies such as FMS and NGC. For example, NGC sulphur content in the ore is ~1%, but after processing the S content is reduced to ~0.01% for the concentrate, which is quite good. As a comparison, the S content of Woxna Graphite AB, Sweden is ~0.03%. FMS S content in the ore is quite high, but presumably the S content for their concentrate would be much lower, but I have not dug deeper to locate a number. Perhaps, others may want to dig a bit deeper.

In summary, from what I have seen, ZEN graphite purity is considered by the scientific and expert community as, at least, one of the best. In other words, impurity, including Sulphur after processing, would be extremely low...Sulphur content is a non-issue for ZEN, I would say.

goldhunter