The first thing a competent investment committee does with an agri-processing teaser is the napkin test: intake times operating days, divided by farmers, multiplied by conversion ratios and prices. Most project sponsors hope the committee will not do the arithmetic. We would rather publish it.
Here is the napkin test applied to Mutomato. Twenty tonnes of raw fruit per day, at 300 operating days, is 6,000 tonnes a year. Spread across 1,500 contracted outgrowers, that is roughly four tonnes per farmer per year. Converted to paste at industry ratios, it is a modest finished-goods volume. So how does the model reach USD 1.9 million of EBITDA by year five? The answer has three parts — utilisation, product mix, and a Phase 2 expansion that is in the design from day one — and each part is arithmetic, not assertion.
Three hundred operating days is an aggressive number for a single-season crop and a defensible one for Mutoko. The district's smallholders already run three-month staggered production cycles under irrigation — the field pattern documented in the field briefing — and the hub infrastructure formalises that stagger: drip fertigation from solar-pumped boreholes decouples the planting calendar from the rains, and the offtake schedule assigns delivery windows by hub. The plant does not assume year-round fruit because the model wants it to; it contracts for year-round fruit because the corridor already grows that way. The ramp path is explicit: twenty-five per cent utilisation in the first commercial run, building to full Phase 1 ramp by the second full season.
Raw fruit becomes revenue through three product lines, each with its own conversion ratio and price point. Concentrating field tomatoes to paste at Brix 28–30 consumes roughly six tonnes of fruit per tonne of paste. Purées, at Brix 8–12, run nearer 1.5 to one. Retail sauces are manufactured from paste and recover volume on dilution — roughly two tonnes of fruit per finished tonne, sold at retail rather than bulk pricing. The mix is the margin engine: bulk aseptic paste anchors utilisation and export credibility, while sauces and purées capture the branded, higher-realisation share of the import-substitution market.
| Product line | Raw fruit (t) | Conversion | Finished (t) | Price (USD/t) | Revenue (USD) |
|---|---|---|---|---|---|
| Bulk aseptic paste (Brix 28–30) | 3,000 | ~6 : 1 | 500 | 1,300 | 650,000 |
| Retail sauces (paste-based) | 4,200 | ~2 : 1 | 2,100 | 2,000 | 4,200,000 |
| Purées (Brix 8–12) | 4,800 | ~1.5 : 1 | 3,200 | 950 | 3,040,000 |
| Year-5 total (Phase 2) | 12,000 | 5,800 | ~7,900,000 |
Approximately USD 7.9 million of year-five revenue at a twenty-four per cent EBITDA margin supports the USD 1.9 million year-five EBITDA in the investment case. Prices are indicative, benchmarked against landed import parity for the Zimbabwean market and regional wholesale levels, and are stress-tested in the downside scenario alongside a yield-shortfall case.
A base case you can rebuild on a napkin is worth more to a credit committee than a base case defended by a footnote.
The year-five figures above are not a twenty-tonne plant run hot. They are a forty-tonne plant: the design provides for expansion to forty tonnes per day from year four, taking annual intake to 12,000 tonnes. The expansion is deliberately conservative in its financing assumptions — funded from operating cash flow and a dedicated expansion-capex line, not from an assumed second raise — and deliberately unconservative in its engineering: the civils, the utilities envelope, the solar sizing headroom and the effluent capacity are all specified for the forty-tonne case on day one, so Phase 2 is a line-addition, not a rebuild.
Volume arithmetic fails most agri-processing models on the supply side, so here is that reconciliation as well. At Phase 2, 12,000 tonnes across 1,500 outgrowers is eight tonnes per farmer per year. At the ~25 t/ha yields achievable under drip fertigation with certified hybrid seed — against the district's far lower rain-fed baseline — that requires roughly 0.32 hectares of contracted tomato plot per farmer (half that in Phase 1), comfortably inside Mutoko smallholding sizes and deliberately below each household's total cropped area, preserving the food-crop rotation documented in the field research. Seasonal shortfalls are covered by vetted spot procurement within the corridor, and the livelihoods model prices the contracted volumes at fixed-price forwards, not spot hope.
Because the alternative is worse. Every experienced DFI analyst has seen the deck where intake, farmer counts and EBITDA sit on three different slides and do not multiply into each other. The committee finds the gap in the first hour, and the sponsor spends the rest of the process explaining it. Mutomato's position is that the reconciliation is the marketing: operating days, ratios, mix, prices, acreage and the expansion path, stated in one place, in public, with the full financial model available to qualifying counterparties in the data room.
Read together with the demand-supply case, the capital stack and the energy economics, this closes the loop between what the corridor grows, what the plant makes and what the model claims.
— Mutomato project team, 12 August 2026.