svm and the green future, page-37

https://smallcaps.com.au/graphite-stocks-asx-ultimate-guide/

Graphite prices between 2011 and 2017

Graphite is not traded on any commodity exchange and its pricing is based on direct seller and buyer negotiations. As such, published prices are rough guides with the graphite market relatively opaque, albeit, less so now.
The mineral’s final price also comes down to myriad factors including purity, crystallinity, size (mesh), downstream processing (ie spherical graphite), and desired end-use.
As a rough guideline, flake graphite with +80 mesh and graphitic carbon content over 95% generally commands the highest price, with the value typically increasing with purity and size.
According to analyst Roskill, the October rebound for flake graphite containing 94% to 97% total graphitic carbon (TGC) resulted in a 36% price jump to an average US$863 per tonne. Medium flake graphite pulled in around US$953/t, while large flake graphite rose to US$998/t.
Two months later, analyst Benchmark estimated the free-on-board price for large flake graphite out of China comprising 94-95% TGC and +80 mesh had risen to US$1,125 in December 2017.
During the 12 months between December 2016 and December 2017, Benchmark purports the price for all natural graphite products had leapt, on average, 25%.
Despite the recent price resurgence, graphite still has a way to go till it returns to its former glory.
The United States Geological Survey organisation (USGS) reported graphite prices for late 2011. The organisation stated the price for microcrystalline graphite comprising 80% to 85% TGC, which is the lowest of all graphite types, was between US$600 to US$800/t in 2011. Medium-to-large flake graphite with 90% TGC ranged from US$1,150/t to US$2,000/t. Meanwhile, the rarer and purer Sri Lankan lump and chip graphite containing 99% TGC was raking in between US$1,700/t to US$2,070/t during that same period.
For synthetic graphite, the USGS claimed the 99.9% pure synthetic graphite was bringing in between US$7,000/t and US$20,000/t.