Ghana’s cassava chain is real and huge, but it is short and it is shallow. The value in cassava climbs steeply as the crop moves from farm to processor to exporter, yet almost the entire harvest stops at the first and thinnest link, because the middle of the chain, the aggregation, storage and reliable processing that would carry roots to a paying market, barely exists.
The result is a country that grows more cassava than almost anyone and still imports far more cassava products than it sells. This pillar maps the chain link by link, follows the margin up it, names who holds the power, and sets out where the value can be captured. It doubles as the standalone value chain analysis for the crop.
The cassava value chain in Ghana runs through a familiar set of actors: input and planting-material suppliers, the smallholder farmers who make up about seven in ten of the country’s farmers, the aggregators and traders who bulk and move the roots, the processors who turn them into gari, high-quality cassava flour, starch and chips, and the wholesalers, retailers and thin band of exporters who carry the product to its end market.1 Around all of them sits a layer of support services: the equipment fabricators, the finance schemes, the research institutes and the standards body. Figure 14 lays out the whole chain.
The important part of this map is the arrows between the boxes, more than the boxes themselves. Roots leave the farm on a truck, a tricycle or a hand trolley within a day or two of harvest, because the crop starts to rot almost at once, and that single fact shapes everything downstream. The chain is pulled along by scattered, mostly household demand for fresh roots and traditional foods, rather than organised around a large industrial buyer that plans its supply. So it runs the wrong way: it is driven from the bottom by what the farmer can sell today, when it should be pulled from the top by what a factory has contracted to buy. Turn that around, and the rest of this pillar becomes an opportunity list.
The shape of the chain is not the news; the news is which link has a real number attached to it, who already stands there, and where the value leaks. Table 11 walks the eight links, from the stem in the ground to the consumer, and it is meant to be read as a diagnostic rather than a description. The column that matters is the last one, the opening inside each break, and the column that should give an entrant pause is the money signal, because where it is blank, nobody has measured it and this playbook will not invent it.
| The link | Who operates it | The money signal | Where it leaks, and the opening |
|---|---|---|---|
| 1. Input supply | Extension agents, agro-dealers, equipment fabricators, the outgrower firm | None measured: no stem price exists in the evidence | The seed market is missing; sell into a written buyer specification and deduct the stem from the delivered root price |
| 2. Production | Smallholders (nine in ten under two hectares), nucleus farms, hired and family labour | Thin and contested (see Pillar 5) | Value leaves as wages more than it stays as profit; the lever is yield, not price |
| 3. Post-harvest | Farmers, on-farm chippers and driers, bulkers, transporters | A penalty more than a spread: roots rejected at the gate are lost | The two-to-three-day clock; convert to a storable form at the farm |
| 4. Processing | Cottage gari groups (women-led), flour and starch SMEs, two starch plants, one ethanol maker | The only fully measured link: per-tonne cost, price and profit for four products | Runs below capacity for want of roots or a buyer; certification is the door |
| 5. Storage & logistics | Transporters, bulkers, tractor-trailer fleets, district assemblies | The largest single cost in moving fresh roots | Roots rarely travel far, so the catchment is small; move the dry weight rather than the wet |
| 6. Marketing & trade | Bulkers and aggregators (the chain's leaders), wholesalers, traders, exporters | Thin, self-reported margins | Weak grading and weighing on the spot market; grading is the opening |
| 7. Retail & distribution | Market retailers, supermarkets, institutional buyers | Thin; dried products earn more because they keep | Poor storage caps volumes; institutional buyers are the softest target |
| 8. The consumer | Households, schools, hospitals and prisons, industry, breweries, export | Not a margin link; cassava beer sells below conventional beer | Cassava is a substitute for maize; rising middle incomes are the growing segment |
Source: playbook synthesis, anchored to MoTI/WACOMP (2019), Kleih/GASIP (2016) and FAO/MAFAP (2013). Where a money cell reads 'none measured', it is blank in the evidence, not in the research.
There are two different problems in this chain, and an entrant who confuses them buys the wrong fix. For starch and ethanol the binding constraint is roots; for high-quality flour and chips it is the market. The national value-chain analysis (MoTI, 2019) found a lack of a stable market for high-quality cassava flour in three of its six proposed processing clusters, against a shortage of raw material in only one, with a certification gap in all six. The one cluster short of roots, in Volta, is the one that holds the country’s only cassava-ethanol plant. Contracting more farmers for a flour factory whose problem was never the farmers is the most expensive mistake in this pillar.
Follow the profit the gari chain generates and it pools at the top. On the government’s own value-chain analysis, of every cedi of profit the chain makes, the producer keeps about 8 per cent, the processor about 18, and the exporter about 73. The exporter captures nearly three-quarters of the profit the whole chain generates, while the farmer who grows the crop keeps the smallest slice. Figure 15 and Table 12 show the split.2One point of care matters here, because it is widely misquoted. The source labels this row ‘profit margin’, but the three figures are shares of the chain’s total profit; they sum to a hundred, and they are not each actor’s margin on its own sales. The exporter’s true margin on its own selling price is about 38 per cent, not 73. Either way the reading is the same: value is captured moving up the chain, and the farmer keeps the least.
The product mix tells the same story from another angle: high-quality cassava flour carried the highest value-added share, about 36 per cent, and the highest profit share, about 58 per cent, of any cassava product studied in southern Ghana, far above the raw root.3 The wider chain is not small in absolute terms, one regional analysis put total value addition across it at roughly two billion cedis at 2016 prices, but that value is unevenly split and thinnest at the farm.4 The lesson for anyone entering the sector is to position as far up this chain as they can fund, and for anyone already farming, to find a way to share in the processing profit rather than selling roots at the bottom of it.
| Stage in the chain | ||||
|---|---|---|---|---|
| Producer (fresh roots) | 1,408 | 2,024 | 616 | 8.3 |
| Processor (gari) | 3,128 | 4,500 | 1,372 | 18.4 |
| Exporter | 9,015 | 14,466 | 5,451 | 73.3 |
The final column is each actor's share of the chain's total profit (the three sum to 100), not its margin; the exporter's margin on its own selling price is 37.7 percent.
Source: Ministry of Trade and Industry / WACOMP (2019), Table 16, titled 'Distribution of profit along the gari value chain'; 2019 nominal cedi values.
The reason the farmer stays at the bottom of the ladder is that the middle of the chain is missing. Only about a tenth of Ghana’s cassava reaches industrial-scale processing, and as much as half the crop can be lost after harvest, because there is no organised layer to bulk, store and grade a perishable root that spoils within two to three days of leaving the ground.5 Cold storage below four degrees slows that clock, but it is almost nowhere in the chain.6 The gap is not demand. The crop is worth several times more downstream than the farmer is paid at the gate, even by commercial retail estimates of uncertain basis that put roots at around twenty to twenty-five cedis a kilo in 2026; that value simply is not reaching the farmer, who sells under pressure to move a crop that rots within days.7
The clearest proof that the middle is missing is the trade balance. Ghana is one of the world’s largest cassava producers, ranked fourth globally in one recent profile, yet in 2020 it imported almost seventy million dollars of cassava products, nearly all of it ethanol, while exporting under one million dollars’ worth. Figure 16 shows the mirror.
Behind that mirror is a set of quantified, unmet openings. The same regional profile put Ghana’s internal demand deficit at more than ninety-six thousand tonnes a year for high-quality cassava flour, more than eighty-five thousand tonnes for starch, and more than two hundred million litres for ethanol on this 2022 profile, well above the roughly eighty million litres a 2019 national cassava stakeholder forum recorded for the same crop (Pillar 2), the range itself a sign of how thinly this demand is measured.8 A single buyer makes the point concrete: Guinness Ghana Breweries needs about a hundred thousand tonnes of cassava flour a year and domestic processors supply less than a third of it. Every one of those numbers is a factory that could be built, a supply contract that could be signed, and a margin that is currently leaving the country.
One of the world’s largest cassava producers imported almost seventy million dollars of cassava products in 2020, nearly all of it ethanol, while exporting under one million dollars’ worth. The gap is the missing middle stated as a trade balance, and every dollar of it is a margin leaving the country.
A value chain is also a map of power, and in cassava the power is lopsided. Fieldwork across the southern chain found a captive-market structure: farmers and small processors have little bargaining power and take the price on offer, while a handful of large processors and buyers hold concentrated market power and set the terms.9 Figure 17 places the main actors by how much power they hold over the chain against how much interest they have in it, and Table 13 turns that into an action list.
| Actor | Role in the chain | Power | The opening |
|---|---|---|---|
| Smallholder farmers | Grow the roots; about 70% of farmers | Low, captive | Aggregate into offtake-backed groups to win a price |
| Aggregators & traders | Bulk, grade and move roots to processors | Rising | Formalise the scarce middle; the clearest under-built business |
| Processors | Turn roots into gari, flour, starch, chips | High, in few hands | Mid-scale entry tied to a named buyer |
| Industrial buyers | Pull demand (breweries, mills, feed) | High | Secure supply through contracts rather than spot markets |
| Government & GICSP platform | Policy and standards (state); multi-actor coordination (GICSP) | High | Structured markets and finance that reach the farm |
| Banks / GIRSAL | Finance the chain | Medium | Guarantee aggregated, contracted supply |
Source: playbook analysis, drawing on MoTI (2019), Manu (2017) and the GCIPP programme record.
The concentration is not abstract. Under the AGRA-funded cassava industrialisation programme, a small number of named processors held the supply contracts that tie farmers into the chain, with Amantin Agro Processing, Ohumpong Investments and JOSMA Agro-Industries each holding dozens, and in one case more than a hundred and fifty, smallholder agreements.10 On the other side, the Ghana Industrial Cassava Stakeholders Platform is the one standing body that convenes farmers, processors, government, fabricators and buyers together, which makes it the natural place to push for the structured markets that would rebalance the chain.11 The strategic point is simple: a lone farmer has no power, but an aggregated, contracted group of farmers with a guaranteed buyer does, and building that group is the single most powerful move in the chain.
The grid is worth reading for what is missing as much as for what is there. The top-left corner, the actors with power over the chain but little interest in it, is empty: nobody with real market power is sitting this chain out and blocking it. That is the encouraging part of the map. The cassava chain is not held shut by a powerful gatekeeper the way some commodities are; it is simply unorganised, and an unorganised chain is a far easier one to enter than a captured one.
Table 13 names the six actors whose decisions move the chain; the fuller register behind them, every distinct actor from the stem supplier to the exporter and the institutions around them, is set out in Table 14. It is the map an entrant uses to find where they fit and whom they must work with.
| Actor | What they do in the chain | Their leverage or constraint |
|---|---|---|
| Input suppliers and agro-dealers | Sell fertiliser, agrochemicals and tools; fabricate equipment | Thin reach to smallholders; the potash-shape gap sits here (Pillar 4) |
| Nursery and planting-material operators | Multiply and sell clean cuttings | Barely exists as a market; the highest-leverage missing business (Pillar 1) |
| Smallholder farmers | Grow about seven in ten of the crop, mostly under two hectares | Price-takers with no aggregation; low power, high number |
| Nucleus and commercial farms | Larger, sometimes processor-linked growers | Can anchor supply for a plant, but still few |
| Aggregators and traders | Bulk, grade and move roots to processors | The scarce, under-built middle; rising power and the clearest opening |
| Transporters | Haul a perishable root against the clock | The largest single cost in moving fresh roots |
| Cottage gari processors (women-led) | Make the country's proven cassava product | Informal and unbranded; they leave the branded premium to imports (Pillar 2) |
| Flour and starch SMEs | Mid-scale processing into flour and starch | The missing middle; gated by certification and a steady root supply |
| Industrial plants (starch, ethanol) | Large-scale conversion | Run below capacity for want of roots or a buyer; the stranded-asset risk |
| Wholesalers and retailers | Carry product to the consumer | Thin margins; dried products keep and earn more |
| Industrial and institutional buyers | Pull demand: breweries, mills, schools, prisons | High power; contracts, rather than spot markets, are the way in |
| Research, standards and coordination | CSIR breeding, GSA standards, extension, the GICSP platform | Sets the varieties, specs and convening table; the lever for structured markets |
| Finance | Banks, GIRSAL guarantees and the OVCF | Rarely reaches the individual smallholder; guarantees need aggregated, contracted supply |
Source: actors compiled from Ministry of Trade and Industry / WACOMP (2019) and the chain map; each actor's role and leverage are this playbook's reading. Where market power concentrates is set out in Figure 17 and Table 13.
Put the chain, the profit split, the missing middle and the power map together and the openings line up in a clear order. Table 15 sets them out.
| Opening | The gap it fills | What kills it | Best suited to |
|---|---|---|---|
| Aggregation & storage | Up to half the crop is lost after harvest and roots spoil in 2-3 days; no organised middle exists | Paying a price premium instead of selling reliability, inputs and transport | Traders, cooperatives, SMEs |
| Mid-scale processing | Unmet demand of 96,000 t/yr for flour and 85,000 t/yr for starch; one brewer short by roughly 70,000 t/yr of flour | Building the plant before signing the buyer; for flour and chips the constraint is the market, not the roots | Entrepreneurs, investors |
| Certification as the product | Every quality buyer (supermarkets, institutions, exporters, industry) requires it; a gap flagged in all six clusters | Choosing a product whose standard does not exist; gari has one, high-quality flour does not | Processors, SMEs |
| Convert at the farm | Beats the 2-3 day clock and cuts the weight that must be hauled; a starch plant that buys chips has bought itself out of the clock | Drying before a buyer for the dried form is contracted | Farmer groups, aggregators |
| Contract farming | Farmers are unbankable and side-sell; industrial buyers cannot rely on supply | Buying loyalty with a high price instead of embedded services, inputs, transport and cash on delivery | Processors, OVCF, GIRSAL |
| Ethanol import substitution | About US$69m of ethanol imported a year against a 213m-litre annual deficit | Underestimating the roots constraint; for ethanol, roots really are the bottleneck | Large investors |
Source: playbook synthesis from ITC/WACOMP (2022), MoTI/WACOMP (2019) and the live-search findings.
Two structures already exist to build around. The Outgrower and Value Chain Fund runs a tri-partite model, an outgrower association, a technical operator and a participating bank, and cassava-gari is one of the value chains it finances, which is a ready template for anyone assembling contracted supply.12 And the state has put a floor under the price: a minimum guaranteed farmgate price for gari of about ten cedis a kilo, announced in 2025, gives a processor and a farmer group a number to plan around.13 None of this is theoretical. Independent fieldwork in the Ashanti and Volta regions reads the growth of off-farm cassava processing and trading as an early, local agricultural transformation already under way, which is exactly the middle of the chain beginning to fill in.14 The opportunity is to accelerate it deliberately rather than wait for it.
There is unusually clear Ghanaian evidence on what actually makes contracted supply hold, and it is not the price. Poku, Birner and Gupta compared a private and a public cassava outgrower scheme: the private firm paid below the spot price yet kept its growers and lifted their yields, while the state scheme matched the market price and still lost its farmers to side-selling. Table 16 shows why, and it is the single most useful lesson for anyone designing an outgrower model.
| The scheme | The price it paid | Contract vs non-contract yield | Held its growers? | Why it worked, or did not |
|---|---|---|---|---|
| Private firm | GH¢120, below the GH¢150 spot price | 8.40 against 5.62 tonnes an acre, significant at the 1% level | Yes | It embedded inputs, technical assistance and transport and enforced the contract, so the below-market price was outweighed by the services and the reliability |
| State scheme | GH¢220, level with the GH¢222 spot price | 5.20 against 5.72 tonnes an acre, not a significant difference | No | It matched the market but embedded nothing, and set a 15 percent starch specification its growers could not reliably meet, so they had no reason to stay and side-sold |
Source: Poku, Birner and Gupta (2018), a comparative study of one private and one public cassava outgrower scheme in Ghana. Yields per acre; prices as reported. The lesson: embedded services and enforcement, not a high price, are what make contract farming hold.
Every step of processing does three things at once: it adds value, it adds shelf life, and it makes the crop safer. A fresh root is cheap, spoils in days and carries unsafe cyanide; the same root dried into chips, grated and roasted into gari, milled into high-quality flour or extracted into starch becomes steadily more valuable, more storable and safer to eat. The highest rung, food-grade and modified starch, is also where global demand is largest and where Ghana has built the least (Figure 18).15
| Product | What it is and who buys | What it needs | The opening |
|---|---|---|---|
| Fresh root | Home and local food; cheapest and most perishable | Nothing beyond harvest | None; the crowded floor of the ladder |
| Dried chips | Raw material for feed, starch and ethanol; storable | Drying, low cyanide | Dried intermediates that buy time against the clock |
| Gari | Mass-market staple, urban convenience, regional export | Grating, fermentation, roasting; moisture at or below 12% | Consistent, branded, graded gari |
| High-quality flour (HQCF) | Bakery and food-manufacturing wheat substitute | Fast processing, fine milling, low moisture | Reliable HQCF supply to a named bakery |
| Native starch | Food, paper, textile and pharmaceutical industry | Extraction plant and clean, steady supply | Starch built against secured offtake |
| Food-grade / modified starch | The highest-value, fastest-growing global segment | Advanced processing, standards and scale | The prize Ghana has barely touched |
Sources: van Duijvenbode / WACOMP (2021); IITA (2012); Ghana Export Promotion Authority.
Gari is the most commercialized cassava product in Ghana and the proof that value addition sells. It is made almost entirely by small-scale and informal processors, who make up about 40 per cent of the country’s food processing industry, the tier where cassava flour and gari are produced (Figure 19).16
What turns cassava into gari is a fixed sequence, peeling, washing, grating, fermenting, pressing, sifting, roasting and grading, and it is that sequence, above all the fermentation and roasting, that also drives the cyanide out (Pillar 3). Quality is measurable: good-quality gari holds moisture at or below 12 per cent and total acidity between 0.6 and 1.0 per cent, the accepted processing specifications,17 and Ghana maintains its own gari standard alongside them.18
The gap is not demand or safety but consistency and scale. One Ashanti processor was still hand-processing a single tricycle-load of cassava over four to five hours with firewood, work that mechanized equipment could do in about forty-five minutes.19 That is the whole opportunity in miniature: the product sells, the standard is known, and the constraint is simply better, faster, more consistent processing, which is also what unlocks the branded-gari premium that imports currently capture (Pillar 2).
Above gari sit the industrial products, and this is where the money and the neglect both concentrate. Global demand for cassava starch runs to over US$1.7 billion in imports and is still growing, yet Ghana does not rank as a significant supplier to any of the leading starch markets, and the sector’s own export plan identifies the clearest opening as food-grade rather than industrial-grade starch, which carries far more volume of demand and which Ghana has barely entered.20By converging industry estimates, only around a tenth of Ghana’s cassava reaches industrial-scale processing at all.21
Flour is the nearer-term play. High-quality cassava flour already goes into bakery products at 10 to 35 per cent inclusion, and a cross-sector effort has worked for years on a composite-flour policy, but Ghana still has no mandatory blending rule, unlike Nigeria, which has moved toward a 20 per cent inclusion mandate.22 So the demand for high-quality flour is real but policy-optional, which means it has to be won bakery by bakery on price and reliability, since regulation will not hand it over. Ethanol is the third industrial route: Ghana imports tens of millions of litres a year and already has its first cassava ethanol distillery running, so the substitution logic is sound but the capacity is thin.23
Between the informal gari yard and the handful of big factories sits very little, and that missing middle is the sector’s structural weakness. The equipment to fill it exists and is largely made locally, from graters and presses to mechanical dryers, but processors consistently favour small, affordable machines, and there is strong latent demand for mechanized services such as peeling rather than outright equipment purchase, which points to an equipment-as-a-service model as much as a factory one.24
New capacity is being built, with cassava flour, gari and starch factories commissioned across Bono East, the Eastern Region, the Volta Region and the north between 2024 and 2026.25 But scale is not safety. A multi-million-cedi one-district-one-factory starch plant at Assin South, begun around 2019, never reached production and now stands overgrown, a direct warning that a plant sized ahead of its supply and offtake is a stranded asset rather than an achievement.26
The safest entry is not a mega-factory but a mid-scale, mechanized, quality-controlled processor built against a real supply base and a named buyer, plus the shared equipment services (peeling, grating, drying) the informal sector will pay for. It matches the missing middle exactly, it phases capital to demand, and it avoids the stranded-asset trap that has claimed the flagship plants.
For anything beyond the local market, quality is the gate. Ghana has a full suite of cassava-product standards, for gari, edible flour, industrial and food-grade starch, and composite flour, and formal and export buyers increasingly require verified traceability alongside a safe, consistent product.27 Meeting the standard is not red tape; it is the difference between selling gari by the cup at the roadside and selling branded, certified gari into a supermarket or an export contract, and it is how a processor captures the value the informal sector cannot. Programmes that pair smallholder supply with quality control, such as the cassava industrialisation partnership linking tens of thousands of farmers to named processors under a national quality regime, show the model: clean supply, documented quality and a committed buyer.28 A recent removal of import duties on processing equipment and tax incentives for agro-processors add a policy tailwind, though the detailed measures are worth confirming before they are banked.29
Farmers and small processors sell into a market with few buyers and little price information, so they take the price offered rather than one they negotiate.
Smallholders and small processors selling into a market with few buyers and no price information, who take the price offered rather than negotiate it.
sell as an aggregated group under a forward contract, use market-price information, and process to widen the pool of buyers.
There is no organised layer to bulk, store and grade roots, so a perishable crop is dumped into a thin local market within days of harvest and much of it is lost.
Every farmer far from a processor and every plant whose roots arrive spoiled or late because no organised bulking and storage layer exists.
build or contract bulking and short-cycle storage close to farms, and schedule harvest to a processor’s demand rather than the calendar.
Contract-farming schemes fail when farmers sell elsewhere for quick cash or buyers renege, so supply stays unreliable and finance stays away.
Every processor or fund designing an outgrower scheme, and every investor underwriting one on a projected purchase price rather than a working service package.
price contracts fairly and pay on time, and bundle inputs, extension and a guaranteed offtake so the contract is worth keeping on both sides.
Plants built ahead of secured supply and offtake never reach production; the Assin South starch factory is the cautionary case, overgrown and idle.
Investors and district programmes that fund a plant before the roots and the buyer are secured, and the community left with an idle building.
right-size to contracted supply and a named buyer; start mid-scale and phase capacity; do not build for a surplus that has no market yet.
Processing depends on getting roots in within days of harvest (Pillar 3); broken supply idles the plant and burns working capital.
Any processor running to a schedule against a perishable crop with no forward supply, whose line then runs below the capacity it was built for.
site near the farm; contract supply; buffer throughput with dried intermediates such as chips.
Inconsistent moisture, acidity or cyanide fails buyers and closes the export gate, stranding product at the low-value informal end.
Every processor with ambition above the village market, since supermarkets, institutions, exporters and industry all gate entry on a standard.
adopt the gari and flour standards and HACCP; test and document every batch; work to the published specification.
The chain is short and shallow: value climbs steeply from farm to processor to exporter, but almost the whole crop stops at the farm, the thinnest link.
Value pools at the top of the chain: of every cedi of profit it generates, the producer keeps about 8 per cent and the exporter nearly three-quarters, so position as high up the chain as you can fund.
The binding constraint is the missing middle, aggregation, storage and reliable processing, rather than the growing of the crop.
Power sits with a few processors, large buyers and the state; farmers and small processors are price-takers in a captive market, and the fix is to aggregate and contract.
The openings are concrete and quantified: unmet flour and starch demand, ethanol imports, and a brewer short some 70,000 tonnes of flour a year, all waiting on someone to build the middle.
Where this connects.The clean, reliable supply this chain needs starts with planting material and yield (Pillar 1); the surplus it must absorb is Pillar 2’s; the products that carry the margin are made by the processing set out above; the field decisions behind their dry matter are Pillar 4’s; and the finance that lets an aggregator or processor build the missing middle is Pillar 5’s. The market intelligence to size these openings and the policy to unlock them are Pillars 7 and 8.