Changzhou Dayilong Agrochemical Co., Ltd. is a manufacturer specializing in agricultural chemical formulations and pesticide-related products. We provide formulation, manufacturing, and OEM production services for customers in the agricultural sector.
Our company is located in Hengsheng Science & Technology Park, Tianning Economic Development Zone, Changzhou. The formulation processing facility is located in Lianshui Industrial Park, Huai'an, covering more than 60 mu. The facility is equipped with formulation production, filling, packaging, and supporting processing equipment to meet different production requirements.
With a focus on practical manufacturing and quality management, we supply agricultural chemical products for customers in domestic and international markets.

What We Manufacture
We manufacture a variety of agricultural chemical formulations for different crop protection solutions.
Our main product categories include:
Insecticides
Fungicides
Herbicides
Plant Growth Regulators
Pesticide Intermediates
Agricultural Adjuvants
Our products are supplied for various crops and support customers in different agricultural markets.
Manufacturing Capability
Our production facility is equipped for manufacturing multiple liquid formulation types, including:
OD (Oil Dispersion)
SC (Suspension Concentrate)
SL (Soluble Liquid)
EC (Emulsifiable Concentrate)
FS (Flowable for Seed Treatment)
To support stable production, the workshop is equipped with:
Reaction equipment
Grinding machines
Colloid shear mills
Horizontal sand mills
Automatic filling machines
Automatic capping machines
Packaging equipment
Automatic loading and unloading systems
These production systems help maintain formulation consistency while improving manufacturing efficiency for both standard products and OEM production.
Testing & Quality Control
Quality control is implemented throughout the manufacturing process, from raw material inspection to finished product release.
Our testing and quality management facilities include dedicated areas for:
- Testing and analysis
- Laboratory testing
- Sample retention
The laboratory is equipped with professional analytical instruments, including:
- Analytical Balance
- Gas Chromatography (GC)
- Liquid Chromatography (HPLC)
- Laser Particle Size Analyzer
- Micro Moisture Analyzer
- Incubator
- Laboratory Oven
These instruments support routine testing of raw materials, formulation stability, particle size distribution, moisture content, and finished product quality.
Each production batch is subject to quality inspection before packaging and shipment, and production samples are retained for traceability.
OEM & Custom Manufacturing
We provide OEM manufacturing services for customers with different product and packaging requirements.
Available services include:
- OEM production
- Private label manufacturing
- Customized packaging
- Label customization
- Bulk production
- Export packaging support
Our team communicates with customers throughout the project to ensure production requirements are accurately implemented.
Certifications
Dayilong holds relevant qualifications for agricultural chemical production and business operations, including:
Quality Management System Certificate
Dangerous Chemicals Business License
Pesticide Operation Permit
Why Choose Dayilong
Customers choose Dayilong for:
Agricultural chemical formulation manufacturing experience
Multiple liquid formulation capabilities
OEM and private label production services
Standardized production management
Quality control throughout the manufacturing process
Complete filling and packaging facilities
Responsive customer communication
Export order support
Customer Service
Pre-Sales Consultation
Our professionals will assist you in selecting or customizing the most effective formulation based on your target crop (multiple crops), local pest and disease resistance, and climatic conditions.
In-Sales Order Tracking
Our professional logistics and compliance experts will track your shipment to ensure strict compliance with international dangerous goods (DG) packaging and transportation standards.
After-Sales Technical Support
We will conduct regular follow-ups to assess field efficacy and provide ongoing technical guidance to end users.
