The owner of the original investment idea in Sandstorm that enlighted my mind on this wonderful business created his “part 2” analysis on the metallurgical/silicon coal streams. You may find the article here. Has this post is reviewing in detail the asset quality and life of the mines, the final estimates are pretty close to mines. Actually, he is even more enthusastic in his estimates than I am.
Just has a note, NovaDX streaming contrats on Rex and Rosa Mines are worth more than the actual market cap of SND.
Disclosure : Author is Long SND.