Kevin, at least we agree on one thing, the first Gen 2 results we publish this week are excellent and very promising.

Anyway, for the interest of others that may read this, I would like to remind all once again that the aim of this first Gen 2 press release was centred on reporting to our shareholders that we had successfully attaint the first milestones mentioned in our October 16, 2017, release, first key millstones being:

·      Successfully operating the Gen 2 Purevap™ in a semi-continuous feed mode over multiple test cycles;

And we did, and more:

GEN 2 RESULTS START DEMONSTRATING COMMERCIAL SCALABILITY OF PUREVAP™ QRR 

Key milestones to date:

·      Gen 2 PUREVAP™ has operated in semi-continuous feed mode under vacuum, over ever increasing time intervals;

·      Gen 2 PUREVAP™ completed 4 operating feed cycles, over 10-12 hours of operation;

·      Gen 2 PUREVAP™ can reach and, more importantly, maintain, the temperature ranges required for optimum operational parameters;

·      Gen 2 PUREVAP™ is achieving significantly higher production yield 5.7 times more (+469%) and production rate 23 times more (+2,259 %) compared to peak Gen 1 PUREVAP™ performance under similar testing conditions.

And that the Gen 2 PUREVAP™ reactor is operating as designed, and yielding results that are in line with expectations.

We did have internal discussions to see if we should also include a section in the release to talk about the correlation between production yield, purity and PUREVAPtm QRR reactor size, but decided not to. 

Our reason was pretty simple, starting a discussion on the subject at this early stage of our ongoing R&D is meaningless since process improvements and design modifications continue to be implemented.

So let be clear, the published results are not definitive… that is why our #2 and #3 Millstones for our ongoing Gen 2 PUREVAP™ were:

·      Increasing production yield of Gen 2 PUREVAP™ over multiple test cycles from low grade feedstock;

·      Increasing production yield of Gen 2 PUREVAP™ over multiple test cycles from high grade feedstock;

At the appropriate time we will publish a release on the subject, and in the meantime, for disclosure reasons, my answer to your question can only be as follow:

As we have stated, the Gen 2 PUREVAP™ reactor is operating as designed, and yielding results that are in line with expectations, therefore, we (Pyro and HPQ) have no reason to believe that the following statement is not an achievable target: “The ability to operate semi-continuously may achieve a maximum production yield of 90%, as typically obtained in industrial scale reactors. “

But to that statement I will add a comment made by Peter on his Forum:

“Of interest is that, by our calculations, the yield/purity benefits are maximized at the 25TPY system and that there are no further yield/purity benefits as one scales up to 200 TPY.”

Finally, I will conclude by pointing out that this week a dedicated group of basher have gone the too great length to make false statements and innuendos around our release… One could almost say that they were trying to minimize the significance of the Milestones reached by changing the conversation.

Finally, Kevin before you come back and say that I have not replied specifically to your question, I have one quick question, can you explain how you are not in a conflict of interest asking such a pointed questions about our process when you have indicated that you are attempting to develop a new silicon production process?

Anyway, let me stated that there would be no further replies on the subject of production yield until we issue a release on the subject…

Regards,

Bernard Tourillon