OK, I'll spell it out.
Range was a low of US$1,859.40 (11/10) to a high of US$2,018.33 (27/11).
Quantum's strike price between for the US$10.646m payment announced 27/11 was US$1,849.73 (previous payment of US$10m was announced 11/10).
Unless the LME operate a different pricing system than the mainstream charts show (Kit_co, etc) it doesn't seem to marry up with this GPA term from 21/03/23:
