Been poring over old company releases looking for signs for...

Been poring over old company releases looking for signs for hope.

It seems current commodity prices are now above and beyond the Scoping Study estimates. I remember some were doubtful when the SS was released, and also the PFS being deliberately slowed b/c of prices. Value per ton ore is up 10% on the higher grade deposits, and 13% after opex is deducted.

		size	Cu, lb	Co, lb	Zn, lb	Pb, lb	Ag, oz	Ni, lb	p/t SS *rec	p/t spot *rec	diff
1	Scoping Study		$3.09	$23.31	$1.23	$1.08	$19.00	$6.80
2	Spot, 7/04/21		$3.98	$22.73	$1.25	$0.88	$25.10	$7.26
3	Difference		29%	-2%	2%	-19%	32%	7%
4	Marley, Cu res	18.4Mt	1.05%	0.14%	0.72%	0.90%	0.94	$10	$197.32	$217.49	10.23%
5	Marley, Co res	17.4Mt	0.26%	0.09%	1.01%	0.80%	0.65	$7	$118.70	$123.41	3.97%
6	Amy	5.1Mt	1.25%	0.14%	0.63%	1.35%	1.19	$10	$223.06	$246.57	10.54%
7	SS recoveries		96.50%	90%	85%	95%	95%	90%
8	opex p/t	$44
9	margin, M Cu								$153.24	$173.41	13.17%
10	margin, M Co								$74.62	$79.33	6.31%
11	Amy								$178.98	$202.49	13.13%

Notes. Blue is prices, green is resources, yellow is margin after opex.
Opex per ton converted from AUD to USD. Per ton value uses recoveries as given in the SS release.

How many Oz undeveloped copper resources contain over $200 USD per ton? Or have 4x margins on opex?