I put it to you to just ask the EGR forum if there are any other metals or (rare earths) that the EcoGraf™ purification process can be extended to other than graphite. I am just thinking of diversification in the business model?
This should get you a nice even spread of replies i would think. Keep it simple.
*Disclaimer: If anything goes wrong don't bring it back to me. If it all goes wrong I also hold the right to flame you in EGR threads as well.....lol.... nah you be right mate.