The mined ore split comprised roughly 55% diluted vein material at 10.64 g/t Au and 45% historical dump and other mineralized material at 3.12 g/t Au

Decision Lens

Mako’s Q1 2026 production release is investor-facing, but it contains operational data points that benchmark performance at a high-grade, narrow-vein open pit. The company reports 97% mill availability and 80.1% gold recovery at San Albino against a blended head grade of 7.70 g/t Au—metrics that reflect process control under active dilution management. At Moss Mine, equipment availability is specifically cited as the driver behind month-over-month heap leach improvement. All figures are company-reported and have not been independently verified. Read this as a benchmark signal, not a certified operational audit.

90-Second Brief

Now, mako Mining reported record Q1 2026 gold sales of 13,721 oz from two operating assets in Nicaragua and Arizona. San Albino milled 53,638 tonnes at 7.70 g/t Au with 80.1% gold recovery and 97% mill availability. Moss Mine posted its strongest operating month in March after improving equipment availability through the quarter. The company is debt-free with cash and trade receivables of $96.1 million as of March 31, 2026, and has two development projects advancing through regulatory and construction phases.

What’s Actually Happening

San Albino operates as a narrow diluted-vein open pit with a strip ratio reported at 43.9:1 for Q1. The mined ore split comprised roughly 55% diluted vein material at 10.64 g/t Au and 45% historical dump and other mineralized material at 3.12 g/t Au. The blended mill feed of 7.70 g/t head grade reflects active material blend management across two ore streams with a greater-than-3x grade differential.

At 614 tpd throughput the operation is small by industry standards, but 97% mill availability and 80.1% gold recovery against that blended feed indicate a process circuit well-matched to its ore. The quarter-end stockpile of 124,350 tonnes at 2.65 g/t Au provides a short-term buffer against mining disruption, but sits well below vein-material grade—meaning heavy stockpile drawdown would compress mill head grade.

At Moss Mine, the heap leach ramp-up remained in progress throughout Q1, with operational performance improving month-over-month. The company attributes the improvement to better equipment availability and more stable plant operations—two variables commonly cited during heap leach commissioning but rarely disclosed with this specificity.

All figures are drawn from the company’s press release dated April 15, 2026, and are presented as reported, not independently verified.

Why It Matters for Mining Operations Directors?

Two operational signals stand out for directors managing comparable assets. First, San Albino’s 97% mill availability against a dilution-heavy, blended ore feed is a data point worth stress-testing against your own circuit. High strip ratios and multi-stream feed blends typically introduce variability that pressures liner wear, cyclone performance, and availability—particularly when the grade gap between ore streams exceeds 3x. Sustaining near-perfect availability in that environment reflects either deliberate blend smoothing at the feed stage or a well-maintained, appropriately sized circuit. Either outcome represents a design or operating protocol worth examining.

Second, the attribution of Moss Mine’s ramp-up improvement to equipment availability is the kind of specific disclosure that most operations releases avoid. For directors managing their own heap leach ramps or commissioning mobile fleets at remote sites, equipment availability is consistently the variable most likely to delay steady-state throughput—and the one most frequently underweighted in ramp-up schedules. The disclosure that March was the strongest operating month to date also signals that the Moss ramp has not yet plateaued, meaning further performance swing—positive or negative—remains in play.

The Forward View

San Albino’s near-term trajectory appears stable if blend management holds, but the 2.65 g/t stockpile grade introduces a latent constraint. Any operational interruption to high-grade vein mining that forces increased stockpile processing will directly compress recovered gold per tonne—a compounding effect given the 43.9:1 strip ratio already driving waste cost.

At Moss, the stated second-half 2026 access to higher-grade ore is the declared inflection point for cash flow contribution. Whether the equipment availability improvements demonstrated in Q1 hold under higher-intensity mining conditions will determine whether that projection is realized on schedule. Higher-grade material typically demands tighter grade control, different blast fragmentation parameters, and more disciplined stacking protocols—each representing execution risk in a still-ramping operation.

On the development front, the ESIA submission at Eagle Mountain in Guyana and the planned construction start at Mt. Hamilton in Nevada mark the transition from study-phase to live regulatory and construction risk. Both timelines depend on regulator response and permitting outcomes that are not yet known.

What We’re Uncertain About?

  • Recovery response to blend shifts: The 80.1% gold recovery is reported for a Q1 blend of 55% vein / 45% historical dump material. How recovery behaves when that ratio shifts—toward more low-grade dump or toward stockpile drawdown below 3 g/t—is not disclosed. Resolving this requires recovery data correlated to blend composition over multiple quarters.

  • Moss Mine steady-state definition: The release describes month-over-month improvement but does not disclose target throughput, target recovery, or a commissioning milestone date for steady state. The ramp trajectory cannot be extrapolated without those anchors.

  • Strip ratio trajectory at San Albino: A 43.9:1 strip ratio is high by open pit standards. Whether this reflects a transitional waste push in the current mine sequence or an enduring plan characteristic has direct bearing on cost per tonne mined—and is not addressed in the release.

  • Eagle Mountain and Mt. Hamilton execution risk: Both projects are early-stage. Regulatory timelines in Guyana, construction cost estimates, and commissioning dates for Nevada are absent from this release. Any operational planning dependency on these assets carries unquantified timeline risk.

One Question to Bring to Your Team

If your operation blends ore from two or more source types with materially different head grades, how frequently do you validate that your mill availability and recovery assumptions are being recalibrated against actual blend ratios—and is that review happening at the shift, weekly, or quarterly level?

Sources

  • Stocktitan — Mako Mining Q1 revenue hits $68.6M, record gold sales | MAKO Stock News (Link)

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