Bulk Maize and Beans Suppliers in Uganda: Selling Guide (2026)

Uganda grows a lot of maize and beans, but most of the money in grain goes to the people who can deliver a consistent, dry, clean, graded lot on time. If you want to be among the bulk maize and beans suppliers in Uganda that buyers call first, the work starts in the field and the store, long before you send a quotation. This guide covers the production and handling steps that decide quality, the ways bulk grain is sold, and the paperwork to check. It deliberately contains no price, yield or profit figures: those change by season, location and buyer, and we could not verify any from an official source.

The facts below come from Ugandan government documents read in October 2026. Where a document is older, we say so.

Know where your grain is sold

Uganda's National Grain Trade Policy, published by the Ministry of Trade, Industry and Cooperatives in September 2015, describes the market. It says the main demand is from institutional buyers such as schools, police, prisons, hospitals, the army and the World Food Programme, and it points to strong regional demand, noting that Kenya alone needed more than 800,000 tonnes of maize a year at the time of writing. The policy also says trade lacks a formal platform linking buyers and sellers, which leaves farmers exposed to volatile prices. In other words, buyers exist, but the supplier who is organised, documented and reachable has the advantage.

For beans, the Uganda Export Promotion Board (UEPB) says on its dry beans page that Kenya is the top destination, taking more than 70 percent of Uganda's dry bean export earnings each year, and that markets are diversifying beyond the East African Community, particularly towards India and the Middle East. The page lists several bean types, including kidney beans (such as red, red-speckled and white-speckled), green mung beans and adzuki beans. Check the page's date and current market information before you commit to a destination.

Bulking: why one sack is not a supplier

The grain trade policy says most smallholders sell individually, which weakens their bargaining power. It promotes bulking through farmer groups, cooperatives and collection centres. A buyer who wants a truckload cannot manage fifty farmers; they want one point of contact, one specification and one invoice. If you are an aggregator in a district centre, set up simple rules: a clear purchase specification for farmers, a weighing and moisture check at intake, written receipts, and separate bays for lots of different quality. Our guide to wholesale suppliers in Kampala shows how city buyers think about suppliers.

Dry it properly: moisture decides everything

Ministry of Agriculture training material for extension workers (the maize manual, uploaded in 2023) says harvested maize is at about 18 to 24 percent moisture and should be reduced to 12 to 13 percent for safe handling. It advises you to:

• Turn grain regularly while drying and keep animals away from it.
• Cover it against bad weather.
• Check moisture with a moisture meter. The manual also describes a simple salt test, which indicates grain above 15 percent moisture needs further drying.
• Keep mechanical drying temperatures within the manual's limit, and shell well-dried cobs because dry maize shells more easily.

The same manual says mycotoxins are produced by fungi under poor post-harvest practices and resist ordinary cooking. Its harvest advice is practical: do not throw cobs on bare ground, avoid dirty containers, avoid harvesting too early or too late, and use clean bags and a tarpaulin or mat. Aflatoxin cannot be seen, so good-looking grain can still fail a test. Our guide to aflatoxin and food safety testing for groundnuts and maize covers testing in more detail.

Grade your lots

The manual reproduces the grading table from the East African standard for maize, FDEAS 2:2017, which sets maximum percentages for foreign matter, pest-damaged grains, rotten and diseased grains, discoloured grains, immature and shrivelled grains, total defective grains and broken kernels for three grades, and a single moisture limit of 13.5 percent. Ask your buyer which grade and which standard they expect, then train your intake staff to sort to that grade. The grain trade policy also says the grading system should be used so that actors can price and trade by grade, but it notes awareness of the standards is low. That is an opening for suppliers who can show a grade on every lot.

Store it without losing it

The manual says good storage does not improve grain quality; it maintains it. For warehouses it recommends:

• Keep stacks away from walls and leave aisles, and use first-in, first-out.
• Place bags on pallets or dunnage poles.
• Keep chemicals and non-food items separate from grain.
• Use a licensed professional for fumigation.
• Consider hermetic (airtight) storage, which the manual says can keep maize safely for more than 12 months.

The grain trade policy also supports the Warehouse Receipt System, which it describes as a way to expand warehousing and make warehouse receipts a tool for trade and trade financing. Ask the Ministry of Trade which warehouses are currently licensed before you rely on it.

Licences and documents

The Ministry of Trade's permits and licences page lists maize among goods that need an export licence. The documents it asks for include an application letter with the quantities, your certificate of incorporation or registration, a URA registration certificate, a tax clearance certificate, a trading licence and a justification for the export. The page does not show a date for these requirements, so confirm with the Ministry before applying. It does not list common edible beans. For cross-border sales you will also need the shipment papers described in our guide to UEPB export registration, such as the phytosanitary certificate.

Frequently asked questions

What moisture should maize have for sale? The Ministry of Agriculture manual says 12 to 13 percent for safe handling, and the grading table in the standard it reproduces gives 13.5 percent as the single moisture limit. Ask your buyer which they require.

Who buys grain in bulk in Uganda? The 2015 grain trade policy names institutional buyers such as schools, police, prisons, hospitals, the army and the World Food Programme, plus regional demand. Current buyers and tender rules should be checked directly.

Do I need a licence to export maize? The Ministry of Trade page lists maize as needing an export licence. Confirm the current rules with the Ministry.

Can I sell small lots? Yes, but buyers prefer consistent lots from a single point of contact. Join or form a group and bulk.

Who handles transport to the buyer? You do. The seller arranges and pays for shipping and delivery on Comilmart. We do not handle freight, customs or duties.

Getting started

Register as a supplier at /apply-manufacturer. It is free to apply. You will need your company registration number, tax number, business licence and registration certificate, at least two sample product images, your company mission, vision and core values, and at least one B2B category; choose the category that fits your grain and pulses. Admin review is stated as about 24 to 48 hours. After approval you can browse buyer requests on your RFQ board and respond with a quotation, and buyers can post what they need at /request-quotation. Include moisture, grade, packing and lot size in every quotation so buyers can compare you with confidence.