Exporting Maize from Pakistan: Aflatoxin and Khapra Beetle Controls That Make or Break a Shipment
Quick Answer
Yes, but quality control decides whether a shipment clears: keep aflatoxin below Pakistan's 20 ppb standard, and eliminate khapra beetle, which triggered a self-imposed export suspension to Vietnam in July 2024 after detections in outbound consignments. TDAP now runs seminars on both controls, and the CABI-developed AflaPak biocontrol has cut aflatoxin by 80% in field trials.
| Market size | Pakistan's maize export market is valued at about $324 million |
|---|---|
| Aflatoxin standard | PSQCA caps aflatoxin at 20 ppb for food and food products, 10 ppb for milk |
| Khapra beetle shock | Vietnam maize exports fell from $26.81 million in July 2024 to zero within 3 months |
| AflaPak results | Field trials cut aflatoxin by 80 percent and raised farmer incomes by 25 percent |
| 2024-25 production | Maize output hit 9.5 million tonnes, with 1.42 million tonnes exported in 2023-24 |
Yes, Pakistan can export maize, and it does, at a market valued around $324 million, but two quality controls decide whether any given shipment actually clears: aflatoxin below Pakistan's 20 ppb standard, and elimination of khapra beetle, a pest that triggered a self-imposed export suspension to Vietnam after detections in July 2024. TDAP now runs dedicated seminars on both risks, and a CABI-developed biocontrol product called AflaPak has shown real results in the field. This post covers what breaks a maize shipment and what is being done to fix it.
How big is Pakistan's maize export market, and who buys it?
Pakistan exported 1.42 million tonnes of maize in 2023-24, about 3.0% of the country's agricultural value-added output, in a maize export market valued at roughly $324 million. Vietnam was the single largest buyer, importing $164.6 million worth of Pakistani maize that year, with Malaysia also a significant destination. Maize output itself hit 9.5 million tonnes in 2024-25, giving Pakistan real production capacity to grow export volume if quality issues get resolved.
The scale of opportunity is larger than current volumes suggest. Pakistan is trying to grow its foothold in a global maize market valued at $62.87 billion, and China alone imported about $9.01 billion worth of maize in 2023, a market Pakistan has only recently started actively pursuing through TDAP-run GACC compliance seminars. The gap between what Pakistan currently ships and what these buyer markets absorb is exactly why quality control, not production volume, is the binding constraint on export growth.
What aflatoxin standard does Pakistani maize need to meet?
Aflatoxin is a toxin produced by the Aspergillus flavus fungus, and it is the single biggest quality risk in stored maize. Pakistan's own domestic standard, set by the Pakistan Standards and Quality Control Authority (PSQCA), caps aflatoxin in food and food products at 20 ppb (parts per billion), with a stricter 10 ppb limit for milk. That 20 ppb ceiling applies across multiple PSQCA product standards, including balanced livestock feed and fortified wheat flour, and it is the benchmark exporters need to test against before committing a shipment.
The scale of the underlying problem is what makes this standard matter so much in practice. Research testing has found maize grain samples exceeding the 20 ppb tolerable limit, and in some areas of Pakistan, up to 90% of tested maize has shown aflatoxin contamination. Buyer countries add their own layer on top of Pakistan's domestic standard: the EU, for instance, caps aflatoxin in food at just 4 parts per billion, a far tighter bar than Pakistan's own 20 ppb ceiling, which is one reason EU-bound cargo needs closer pre-shipment testing than cargo headed to less strict markets.
What happened when khapra beetle was found in Vietnam-bound maize?
Khapra beetle (Trogoderma granarium) is a pest that Vietnam treats as zero-tolerance, meaning even a single detection can trigger a consignment rejection or a wider trade restriction. That is exactly what happened in July 2024: after repeated interceptions of Pakistani maize consignments carrying khapra beetle, the Department of Plant Protection imposed a self-restriction on maize exports to Vietnam rather than risk a Vietnamese-imposed ban.
The financial impact was immediate and severe. Monthly export value to Vietnam fell from $26.81 million in July 2024 to $7.73 million in August, then $0.23 million in September, and down to zero for the rest of that fiscal year starting July 1. For an exporter, that is the clearest possible illustration of what a single pest detection can do to a market relationship: not a fine or a delay, but a complete shutdown of the trade lane.
| Month (2024) | Vietnam maize export value | Status |
|---|---|---|
| July | $26.81 million | Khapra beetle detected, self-restriction begins |
| August | $7.73 million | Sharp decline continues |
| September | $0.23 million | Near-total collapse |
| October onward (new fiscal year) | $0 | Exports halted |
What is TDAP doing about it, and what is AflaPak?
TDAP has moved to address both risks directly. A seminar hosted in Vehari, titled "Improving Maize Export Quality through Khapra Beetle and Aflatoxin Control Measures," brought growers, exporters, technical experts and trade officials together specifically to address the issues threatening exports to Vietnam and Malaysia. Recommendations from that seminar included pest-resistant storage bags and fumigation for khapra beetle, and prompt harvesting, drying, and storage in well-ventilated spaces to curb aflatoxin buildup after harvest.
On the biological side, CABI has spent several years developing a longer-term fix. Starting in 2019, CABI's "Aflatoxin Control in Pakistan" project, working with the Pakistani government and private sector, identified a native, non-toxin-producing strain of Aspergillus flavus and turned it into a commercial biocontrol product called AflaPak, whose active ingredient works by out-competing the toxin-producing strain in the field. Field trials run jointly by CABI, the Crop Diseases Research Institute, and Rafhan Maize across two growing seasons in five major maize-growing districts of Punjab (Sialkot, Kasur, Okara, Khanewal, and Lodhran) showed AflaPak reduced aflatoxin levels by 80% and increased farmer incomes by 25%. A parallel USDA-listed research project has worked to characterize Pakistan's native aflatoxin-producing fungi and build local capacity to manufacture and deploy biocontrol at lower cost, with CABI and USDA jointly testing and registering AflaPak for the Pakistani market.
For maize headed to China specifically, TDAP ran a series of seminars in August 2025 across key corn-producing districts of Punjab covering the GACC protocol, including registration and quality certification, since China's mandatory food-safety standards on mycotoxins, contaminants, and pesticide residues apply just as strictly as Vietnam's khapra beetle tolerance does.
What should a maize exporter check before shipping?
- Test aflatoxin levels against Pakistan's 20 ppb PSQCA standard before booking a shipment, and against the buyer country's own limit, which may be tighter, such as the EU's 4 ppb food standard.
- Confirm your storage facility uses pest-resistant storage bags and has a documented fumigation record for khapra beetle control.
- Harvest and dry promptly, and store in well-ventilated conditions, since delayed drying is a major driver of aflatoxin buildup.
- For China-bound cargo, confirm GACC registration and quality certification are current before booking, since requirements have been actively updated through 2025.
- Check current DPP/NAFSA guidance on any active market-specific restrictions, since a single pest detection has already shut an entire trade lane to Vietnam once.
Olympic Agencies has cleared agricultural cargo, seeds, fertilizer, and agricultural machinery at Karachi Port and Port Qasim since 1982, and we help maize exporters confirm aflatoxin and pest-control documentation before it becomes a rejection risk, under our freight forwarding service. For related export guidance, see our posts on sesame seed export to China and duty drawback and export incentives for agricultural exporters. Send us your maize shipment volume and destination market on WhatsApp and we will confirm your documentation before you book freight.
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WhatsApp us your shipment details →Frequently Asked Questions
What aflatoxin limit applies to Pakistani maize exports?+
Pakistan's Standards and Quality Control Authority (PSQCA) caps aflatoxin in food and food products at 20 ppb, with a stricter 10 ppb limit for milk. Research testing has found maize samples in some parts of Pakistan exceeding this limit, and in some areas up to 90 percent of tested maize has shown aflatoxin contamination, which is why pre-export testing matters.
Why did Pakistan suspend maize exports to Vietnam?+
The Department of Plant Protection imposed a self-restriction on maize exports to Vietnam after khapra beetle, a pest Vietnam treats as zero-tolerance, was detected in outbound consignments in July 2024. Monthly export value collapsed from $26.81 million in July to $7.73 million in August, $0.23 million in September, then to zero for the rest of that fiscal year.
What is AflaPak and does it actually work?+
AflaPak is a biocontrol product developed by CABI using a native, non-toxin-producing strain of Aspergillus flavus that competes with and displaces the toxin-producing strain in maize fields. Field trials across five Punjab districts over two growing seasons showed AflaPak reduced aflatoxin levels by 80 percent and increased farmer incomes by 25 percent.
What controls does TDAP recommend for maize exporters?+
TDAP-hosted seminars have recommended pest-resistant storage bags and fumigation for khapra beetle control, plus prompt harvesting, drying, and ventilated storage to keep aflatoxin down. For China-bound maize specifically, TDAP has also run GACC-protocol seminars covering registration and quality certification requirements.
Olympic Agencies
Clearing agricultural cargo - seeds, fertilizers, and machinery - at Karachi Port and Port Qasim since 1982. Members of PIFFA and the Chamber of Commerce.
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