Sieg,       One would expect the graphene nano platelets will make the concrete so strong that one would not run into this cracking problem that needs self repair. You, as well as I and many other shareholders, are wondering the same thing as to when we hear from Isreal. I must tell you that I watch a list of about 100 stocks. As news items come out for these companies they move to the top of the list and so on. What I have noticed several times in the past is that when ZEN gets to the point that it is in the bottom 10 to 15 % of the listings that it is not long until news comes out. We are at that point now so if history repeats, news is just around the corner. Best wishes all.   the deputy