When global health agencies issue tenders for long-lasting insecticidal nets (LLINs), they demand more than just a product. They require a partner who understands the technical specifications, the regulatory landscape, and the logistics of humanitarian supply chains. YAHE LN stands as a WHO-prequalified (PQ) manufacturer that delivers exactly that—and more.
We are not simply a factory that produces mosquito nets. We are a full-service OEM partner that works alongside governments, NGOs, and institutional buyers to design, test, and ship LLINs that meet the most rigorous international standards. Our track record includes multiple WHO PQ certifications, ISO management system accreditations, and a production capacity that scales from pilot batches to multi-million-unit orders.
This article walks you through what makes YAHE LN a trusted LLIN mosquito nets manufacturer for WHO tenders, and why our OEM model offers a distinct advantage for procurement professionals seeking reliability, transparency, and technical excellence.
WHO Prequalification: The Gold Standard for LLIN Procurement
WHO Prequalification (PQ) is not a one-time achievement. It is a continuous commitment to quality, safety, and efficacy. YAHE LN first obtained WHO PQ certification in 2015, and we have successfully renewed it year after year. Our products appear on the official WHO list of recommended LLINs, which is the primary reference for UN agencies, including UNICEF, UNHCR, and the Global Fund.
Being a WHO PQ-certified LLIN mosquito nets manufacturer means that every batch we produce undergoes rigorous testing—from active ingredient concentration to tensile strength and wash resistance. Our internal quality control systems mirror the protocols used by independent laboratories like TEC (France) and other GLP-certified facilities. This alignment ensures that when you source from us, your tender submission carries the weight of internationally recognized data.
What WHO PQ Certification Covers
Product safety and environmental risk assessment
Biological efficacy against malaria vectors, including pyrethroid-resistant mosquito populations
Physical durability, including resistance to tearing, seam strength, and netting integrity
Wash resistance—our nets retain efficacy after 21+ standardised washes, translating to 3–5 years of field use
Stability data under tropical climatic conditions (Zone IV testing)
These parameters are not just technical checkboxes. They directly impact the success of malaria control programmes. A net that fails early in the field undermines public health investments. That is why YAHE LN treats every production run with the same rigor we apply to our own branded products.
Full-Spectrum OEM / ODM Capabilities for UN Tenders
Tender documents for LLIN procurement often run to hundreds of pages. They specify everything from net dimensions and colour to packaging artwork, labelling languages, and palletisation instructions. Many suppliers struggle to interpret these requirements correctly. We have built our OEM service model around this very challenge.
As an experienced LLIN mosquito nets manufacturer, YAHE LN offers a modular approach to customisation. You retain full control over product specifications while we handle the technical heavy lifting. Our in-house team translates tender requirements into production parameters, validates them through pilot runs, and provides the complete documentation package needed for your bid submission.
OEM Service Modules
Specification customisation: Size (rectangular, conical, family-size, school-size), colour, packaging, and multi-language labelling—all configured to match your tender requirements.
Formulation flexibility: We can adjust the active ingredient (pyrethroid type and concentration) to align with regional resistance profiles, as recommended by WHO guidelines.
Documentation support: Full technical dossiers, certificates of analysis (COA), stability reports, and bio-efficacy data—delivered in the format required by UN procurement officers.
Logistics coordination: Experience with sea freight, air freight, and UN humanitarian logistics corridors ensures your order arrives on time and in specification.
Pilot runs: We support small-batch trial production to validate design and performance before scaling to full tender volumes.
Integrated Production Chain – From Polymer to Packaged Net
YAHE LN operates a vertically integrated manufacturing facility spanning 66,700 square metres (100 mu) in China. Our total investment exceeds RMB 100 million, and the plant generates an annual output value of more than RMB 200 million. This scale is not just about volume; it is about control.
Unlike assemblers who purchase pre-treated fabric from third parties, we begin with raw polyolefin (PE/PP) resins. We draw our own fibres, weave our own netting, apply our proprietary insecticidal coating, and then cut, sew, and package the finished nets—all under one roof. This end-to-end integration gives us a decisive advantage in quality consistency, cost efficiency, and delivery responsiveness.
Daily Production Capacity
Finished mosquito nets: 100,000 units per day
Netting fabric: 500,000 square metres per day
These numbers matter when tenders call for 1 million, 5 million, or even 10 million nets within tight delivery windows. Our production lines are designed for rapid scale-up without compromising quality. We have also invested in dedicated formulation rooms—200 square metres of controlled-environment space that meets international safety standards for pesticide handling.
Proprietary Technology and Long-Efficacy Performance
Our in-house R&D team has been active since 2003, focusing on environmentally compatible insect-repellent technologies. Over the years, we have developed a novel long-lasting treatment process that ensures uniform distribution of the active ingredient across the netting surface. This is not a generic dip-and-dry method. Our process controls the release rate, so the net remains effective through repeated washing and extended field exposure.
Independent testing at French TEC laboratory and other GLP-accredited facilities confirms that our nets retain full bio-efficacy after 21 standardised washes. In practical terms, this translates to 3–5 years of use in malaria-endemic regions. This durability directly reduces the total cost of ownership for procurement agencies, making our nets a cost-effective choice for large-scale distribution programmes.
Key Product Metrics
Wash resistance: ≥ 21 washes (WHO standard)
Effective service life: 3–5 years in field conditions
Active ingredient: Pyrethroid-based, with options for synergist combinations
Physical strength: Exceeds WHO tensile and seam-strength thresholds
We also maintain a robust intellectual property portfolio, including multiple national invention patents. Our ongoing R&D efforts explore next-generation solutions—such as nets with improved resistance to pyrethroid-resistant mosquito populations, climate-adaptive coatings, and biodegradable polymer alternatives.
Certifications and Compliance – No Surprises During Audits
YAHE LN operates under three integrated ISO management systems:
ISO 9001 (Quality Management)
ISO 14001 (Environmental Management)
ISO 45001 (Occupational Health and Safety)
These certifications are not just wall decorations. They form the operational backbone of our factory. Every process—from raw material receiving to finished goods dispatch—is documented, monitored, and continuously improved. Our quality control laboratory performs in-house testing for active ingredient concentration, netting strength, and dimensional accuracy. External auditors from WHO PQ and ISO bodies visit us regularly, and we have consistently passed every review.
For procurement officers, this transparency means fewer surprises during supplier audits. We maintain complete traceability records for every batch, and we can provide them on request—often within hours. This level of preparedness is particularly valuable for UN agencies that require annual supplier performance evaluations.
Social Responsibility and Sustainable Operations
Malaria control is a public health mission, and YAHE LN takes that responsibility seriously. Our nets are designed for use in indoor residual spraying (IRS) and integrated vector management (IVM) strategies recommended by WHO. We actively participate in global malaria prevention initiatives, including donations to endemic regions and collaborations with health ministries.
On the environmental front, we have implemented solvent recovery systems and low-VOC formulations to minimise our ecological footprint. Our factory contributes over RMB 10 million in annual tax revenue and supports stable local employment. These factors may not appear directly on a tender scorecard, but they resonate with agencies that prioritise sustainable procurement.
Why YAHE LN Stands Out Among LLIN Manufacturers
The market for LLIN mosquito nets is competitive, but few manufacturers combine WHO PQ certification, full vertical integration, and flexible OEM services under one roof. Here is what sets us apart:
WHO PQ status since 2015: A proven track record of regulatory compliance and product efficacy.
Complete supply chain ownership: We control every step, from polymer to packaged product.
Over 18 years of industry experience: Our team understands the nuances of vector-borne disease control and procurement cycles.
Massive capacity with flexible batch sizing: We handle millions of units for major tenders, yet we remain agile enough for small pilot orders.
Transparent documentation: All technical files, COAs, and stability data are maintained in audit-ready condition.
Responsive logistics: We have shipped to over 30 countries across Africa, Southeast Asia, and the Americas, often via UN-chartered logistics channels.
Frequently Asked Questions (FAQ)
Q1: What is WHO Prequalification (PQ), and why does it matter for LLIN procurement?
A1: WHO PQ is a stringent certification process that evaluates the safety, efficacy, and quality of health products, including LLINs. For procurement agencies, sourcing from a WHO PQ-certified LLIN mosquito nets manufacturer simplifies tendering because the product data is already validated by WHO. It also reduces the risk of supply chain delays or product rejections during quality inspections.
Q2: Can YAHE LN produce nets with custom packaging and labelling for different countries?
A2: Absolutely. Our OEM service includes full customisation of packaging, labelling, language versions, and even barcode integration. We have experience with the specific labelling requirements of UN agencies, national malaria control programmes, and commercial distributors. We can also produce private-label nets with your brand identity.
Q3: How does YAHE LN ensure the quality of active ingredient distribution across the net?
A3: We use a proprietary coating process developed through years of R&D. Our formulation is applied under controlled conditions to ensure uniform coverage and consistent release rates. Every batch is sampled and tested for active ingredient concentration and bio-efficacy against target mosquito species, using both in-house lab equipment and third-party GLP-certified facilities.
Q4: What is the typical lead time for a large tender order?
A4: Lead times vary depending on order size and specification complexity. However, our vertical integration allows us to respond faster than manufacturers who rely on external fabric suppliers. For a standard 1-million-unit order, we typically deliver within 45–60 days from material procurement. We also offer expedited options for emergency tenders, subject to capacity availability.
Q5: Does YAHE LN provide technical support for tender documentation?
A5: Yes. We understand that tender bids require extensive technical dossiers. Our team works closely with your procurement officers to assemble all necessary documents—including COAs, stability studies, bio-efficacy reports, and manufacturing process validation data. We can also assist with product registration in target countries if required.
Partner with a Certified LLIN Mosquito Nets Manufacturer
YAHE LN combines WHO PQ certification, ISO-accredited management systems, and a fully integrated production chain to deliver LLINs that meet the demands of global health tenders. Our OEM service model is designed to reduce your procurement risk, shorten your delivery timelines, and provide the technical transparency that UN agencies require.
Whether you are preparing a bid for UNICEF, UNHCR, the Global Fund, or a national malaria control programme, we are ready to support you—from initial specification discussion to final shipment. Our team has navigated the complexities of international tenders for over a decade, and we bring that experience to every partnership.
Ready to discuss your next tender requirement? Contact YAHE LN today for a confidential consultation. We will review your specifications, provide preliminary cost estimates, and outline a production schedule that aligns with your procurement calendar. Let us help you submit a bid that stands out for its technical excellence and operational reliability.