Ann: Greenpower Secures Exclusive OHD License, page-45

Because they probably:
a) do not know about this 'disruptive technology'
b) already know the patent is in place
c) are years behind in research and conclusive data

https://www.google.com/patents/US20120289695

If you can read the announcement properly, there is a lot of clues to perhaps what is coming next.
Some of which will no doubt get moderated for unsubstantiated information on this medium/platform

The up's and downs of the SP by a few points of a cent are just mute points and insignificant in the long term fulfillment of this project and the other projects GPP has.

Progression is key - the last 6 months, in my opinion the OHD Biostimulant Project has progressed well. People who want an announcement a week, in my humble opinion do not understand the nature of this project and the delicacies involved.

GPP have been utilising and working with expert professionals from lead organisations (HRL, Monash, Thermacquatica), so although whilst it appears very little or nothing is being done to the common armchair keyboard critic, I would argue otherwise.