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Crop Protection
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Contract Crop Protection Formulation Solutions
With decades of specialised experience in contract crop protection formulation, Exwold is a trusted partner in the global agricultural industry. From herbicides and plant growth regulators to highly active pesticides, fungicides and insecticides, we bring precision to every formulation. Having successfully launched over 100 extruded granules, we provide both multi-national and independent companies with the technical expertise needed to turn complex chemistries into market-ready solutions.
Ask an expert
enquiries@exwold.com
Phone Number
+44 (0)1429 230340
Main Address
PO Box 270, Brenda Road, Hartlepool, TS25 2BW, UK
Herbicides and Plant Growth Regulators (PGRs)
Both multi-national and independent companies have benefited from Exwold’s expertise in herbicide processing and advanced pesticide granulation.
During processing of herbicides and PGRs we utilise a number of different technologies, including:
- Complex low pressure extrusion (Fuji Paudal) of water dispersible/soluble granules (WDGs/SGs)
- Pan granulation using a 10 foot pan granulator to produce WDGs
- impregnation or coating of granules for direct/broadcast application (GRs)
- twin roller compaction unit
- for PGR processing only, we have an aqueous formulation plant which is located in an isolated processing bay, equipped with semi-automatic filling lines for 1L to 20L bottles.
Contact us
For more information on herbicides and plant growth regulators please contact us on +44 (0)1429 230346. You can also contact us via e-mail at enquiries@exwold.com
High Active Herbicides
Exwold offers expert contract formulation and granulation of high active herbicides, including highly potent Sulfonyl Ureas. In September 2020, Exwold opened a new facility in Hartlepool.
Our offer to you includes:
- A stand alone, dedicated plant for extrusion of Water Dispersible Granules ( WDGs).
- A proven track record of manufacturing commercial scale quantities.
- We can cater for customers volumes from a few hundred kilos to 10’s of tonnes.
- Excellent containment and cross-contamination prevention, working to strict ACL limits.
- The manufacturing facility is supported by a range of packing options and QC laboratory.
Exwold look to work closely with you during the process. Our Technical Team have years of formulation experience, having successfully scaled up numerous High Potency Herbicide formulations and are able to work with multi-active formulations.
With extensive Herbicide manufacture experience, we work with our customers to ensure product integrity and our dedicated unit ensures that our standard herbicide formulations are not compromised by formulating these highly active, High Potency Herbicides such as Sulfonyl Ureas.
Contact us
For more information on high active herbicides please contact us on +44 (0)1429 230346. You can also contact us via e-mail at enquiries@exwold.com
Insecticides, Fungicides and Acaracides
Exwold contract process fungicides and insecticide water dispersible granules at two manufacturing facilities using both basket and radial extrusion. In addition, the company produces impregnated and coated granules (GRs) along with powder blends extensively used for direct application of insecticides and nematicides.
Our offer to you includes:
- Specialised drum blender plants equipped to blend, impregnate and coat granules (GRs).
- Facilities for washing and refilling returnable containers which are commonly used for the application of this group of crop formulations. Currently, we re-fill in excess of 40,000 containers per annum.
- Safe handling of insecticide and acaracide actives.
- Pilot facilities for process familiarisation are available along with the production of field trial samples.
With over 20 years of experience in Crop Protection products including insecticides and acaracides, we work to understand your confidentiality, safety and regulatory requirements. We are pleased to work with you to ensure a commercial offer is available to the market.
Contact us
For more information on insecticides, fungicides and nematicides please contact us on +44 (0)1429 230346. You can also contact us via e-mail at enquiries@exwold.com
Our Resources Section
Discover our range of support services and browse our resource library for in-depth case studies and capabilities. Access key reports, policies, and guides in our downloads area, or visit our media and FAQ sections for more information.
Case Studies
Surface Coating Blending
A multinational company required a cost-effective 2mm granule of a waxy product used as surface coating additive .
The product had not been previously extruded. The material was supplied as a waxy solid block with a melting point below 100 ºC.
The material also required careful handling as it was corrosive and a significant aim was to reduce contact hazards.
Surface Coating Additive Milling
Exwold was approached by a leading chemical company to process a range of automotive surface coating additives.
The surface coating additive is produced as a molten solid in drums. Once cooled it forms a waxy, solid mass. The material has a low melting point <50ºC. The client required this in physical form to charge into coating with a specific particle size distribution to ensure dispersion.
Coating Processing
A powder coating manufacturer contacted us to establish whether a process could be established to recycle fines (the fine powder generated and removed during powder coating manufacture).
The company was sending around 10-25mt of fines to landfill each year and wanted to reduce the environmental and financial impact. The fines ranged in PSD but were typically 150 microns.
Downloads
Supplier Code of Conduct
Exwold is committed to doing business responsibly, ethically and sustainably at all times.
The company adheres to the highest code of conduct and expects its suppliers to do the same. Exwold will only deal with suppliers, consultants and distributors who conduct business in an ethical and responsible manner. Our supplier code of conduct ensures we work together.
Booking In Form
Our booking-in form ensures every collection and delivery to site is managed safely, efficiently, and with transparency.
By confirming arrival times and key details in advance, we can prepare the right resources, minimise delays, and maintain a secure working environment. It also provides a clear audit trail for all shipments, helping us protect product integrity and meet regulatory and safety requirements.
Reports
ESG Report 2025
Our ESG Report embodies our commitment to sustainability, ethical business practices, and transparency. Through this report, we detail how we measure and manage our environmental impact, uphold human rights and employee well-being, and enforce high standards of corporate governance. By doing so, we build trust with stakeholders and demonstrate accountability, showing that profitability and responsibility can go hand in hand.
Particle Size Distribution
Particle Size Distribution (PSD) is a key factor that determines how powders and granular materials behave during processing and final use. Even with identical chemistry, variations can affect flow, stability, reactivity, and product appearance.
This guide outlines what PSD is, why it matters, and how effective measurement and control lead to greater efficiencies and quality.
Frequently Asked
Questions
Can you perform batch processing?
Exwold specialises in batch processing. Batch sizes vary from a few hundred kilograms to tens of tonnes. We also have continuous processing available with extrusion processes.
Do you sell your own products?
No. Exwold specialises in contract manufacture and in order to avoid any conflicts of interest with our clients, we have chosen to specialise only in contract processing and do not offer our own products.
Can you carry out multi-stage processing?
Yes our expertise and flexible plants allow us to combine processing technologies, for example, we regularly combine blending with our granulation capabilities.
What is your minimum order quantity for processing?
Exwold typically works in the 10 to 1000 tonnes range for clients but processes can be evaluated and adapted on a case by case basis depending on process requirements.
Our pilot facility allows us to produce trial quantities and the High Active Herbicide facility is designed to produce in volumes of 100Kgs upwards.
Can we visit Exwold to perform an audit?
We welcome all our clients to our sites so they can perform audits. We have accreditation to ISO 9001/14001/45001 standards and are looking for continuous improvements in our quality systems, so encourage all customer feedback.
Can you process foodstuffs and pharmaceutical products?
Our expertise is in the speciality chemical and agrochemical markets and as a consequence. Exwold does not currently offer services to the food or pharmaceutical markets.
Can you purchase raw materials for clients as well as manufacture?
Typically our customers prefer to source their own materials but Exwold is willing and able to source raw materials when required.
Our purchasing department can offer expert assistance in sourcing raw materials and packing requirements.
Can you do pre-production trials?
Yes. Our technical department is fully trained to perform and support pre-production trials. We often encourage trials before production so that we can evaluate any technical challenges and arrive at an accurate costing.
The technical development centre is well equipped to enable us to test all the technologies we have at scale.
Can you process solvents?
We tend to work mostly in aqueous phase, but can evaluate opportunities with solvents which have a flash point of >60°.
What quality, environmental and health and safety systems do you operate?
Exwold is certified to the ISO 9001/14001 standards.
In 2019 Exwold gained ISO 45001.
Where are you based?
We have five manufacturing sites which are all based in the North East of England near the town of Hartlepool.
This area has exceptional transport links to the rest of the UK and Europe.
Would you be prepared to buy capital equipment to meet a client’s processing needs?
At Exwold we regularly work with customers in this way and our engineering team can offer in-house expertise in plant modifications and design.
With our clients we have jointly invested over £4 million in plant and equipment.
Should we have concerns regarding contamination?
This is of critical importance to Exwold and it is the most asked question by our clients.
We have sophisticated clean-down procedures for every piece of processing plant and all our plants are accredited with ISO 9001/14001 status.
We operate a plant dedicated to high active herbicides and have warehousing and manufacturing separation between herbicides and insecticides.
Products are tested by a third party analytical company to detect residual impurities to low ppm levels.
Is Exwold sustainable?
Yes. Sustainability is a core focus at Exwold. We continuously invest in renewable energy, such as the solar panels at our Tofts Farm plant, and are actively installing new equipment across all sites to reduce plastic waste and environmental impact.
What type of packing does Exwold provide?
Exwold offers packing as an added value to bulk manufacture. We often hold the bulk in stock providing the ultimate flexibility to pack off as required.
We can pack small bottles for high active herbicides (100-1000g).
We are used to handling multiple packing SKUs for products and we pack from 1kg to 1000kgs in a variety of packaging types, including jerricans, paper and foil bags, kegs, FIBCs and bottles.
Can you provide supply product with 2D matrix labelling?
Yes. We have been investing in this capability following the regulatory requirement to include this when supplying crop protection products to countries such as France and Turkey.
How much will you charge me?
We look to offer competitive rates and, since every processing job is bespoke, we evaluate every opportunity on a case by case basis.
We are able to provide indicative prices at early stages of discussion to ensure project viability.
I know I want a granule made but not sure of how, can you help me?
Our technical team can help to determine which technology is best using their expert granulation knowledge and by asking a few simple questions such as granule size, specific physical properties required and application. From this they will suggest the best options to fulfil your needs.
The Technical Development centre can be used to assess whether this technology produces your desired granule and can support customer trials.