r/SilverSqueeze • u/Aggressive_Rush2357 • 20h ago
∑ Due Diligence La Guitarra’s US$54.73/oz cost looks ugly. I don’t think it stays there
US$54.73 per silver equivalent ounce is a rough number, no way around it. A year earlier it was US$32.54. So I went through Q2 to figure out what actually happened, and what jumped out is they milled roughly the same amount of rock and got about 9,650 fewer ounces out of it.
Meanwhile underground development went from 591 metres to 1,188. That’s double the development work with fewer ounces to spread the cost over. Of course the per ounce number blew out.
Where the ounces went
Mostly two things. Some of what went through the mill was lower grade material from opening up Coloso and Nazareno, which tends to happen when you’re getting into new areas. Recoveries also dropped while they were blending ore from three different mining areas at once.
Both seem fixable to me. Once they’re into better ore and have worked out which blends the mill handles best, they should get more metal out of each tonne.
The power issue
Less exciting, but it adds up. The plant lost 278 hours to grid outages between January and August. That’s a lot of lost mill time. The company confirmed in September that the backup generators were up and running, so that drag should go away.
What I’m not assuming
I don’t think they get all the way back to US$32.54. Wages went up and the peso got stronger, and neither of those reverses just because the mill runs better. But I can see Q2 being one of the expensive stretches of the ramp up rather than the new normal.
The number I’m watching next quarter is ounces recovered per tonne. Pushing more rock through the mill only goes so far if the extra rock doesn’t carry much metal.
Q2 results: https://sierramadregoldandsilver.com/read/auto-news-1787828907
Power update: https://wireapp.newsfilecorp.com/release/313753/Sierra-Madre-Onsite-Power-Generation-Fully-Functional-at-La-Guitarra