Embed Notice

@Brendanjones They use "rocks and industrial waste", so they take at least a large part from nature.

In the last months I found at least 3 "very new methods" to produce what they promise. I never found an independent (!) article/study of all these startups that it works in real life, in great scale.
I'm not a specialist but it sounds like the phase to find investors and get a break-through.