I'd say whatever is in "Plasma burners in decarbonization of iron ore pelletizing by B. Kelly, Rio Tinto IOC, Canada" is significant, and material, for PYR.  

The TSX policy statement on timely disclosure states, (https://www.tsx.com/ebooks/en/timely-disclosure/4/#zoom=z)," Material information is any information relating to the business and affairs of a company that results in or would reasonably be expected to result in a significant change in the market price or value of any of the
company’s listed securities."  "A listed company is required to disclose material information concerning its business and affairs forthwith upon the information becoming known to management, or in the case of information previously
known, forthwith upon it becoming apparent that the information is material. Immediate release of information is necessary to ensure that it is promptly available to all investors and to reduce the risk of persons with access to the information acting upon undisclosed information." "The materiality of information varies from one company to another according to the size of its profits, assets and capitalization, the nature of its operations and many other factors. An event that is “significant” or “major” in the context of a smaller company’s business and affairs is often not material to a large company. The company itself is in the best position to apply the definition of material information to its own unique circumstances." 

So, deference goes to the company to make the determination of "materiality". 

PYR was at the conference, and PYR is the subject of the report. In my view, there is no way PYR does not know what is in "Plasma burners in decarbonization of iron ore pelletizing by B. Kelly, Rio Tinto IOC, Canada".

It would be very helpful to shareholders to also know what is in "Plasma burners in decarbonization of iron ore pelletizing by B. Kelly, Rio Tinto IOC, Canada".