VERTICAL INTEGRATION MASTERY
From ore processing to finished granules:
- 100,000 ton/year blended NPK capacity
- 99.9% pure KNO₃ crystal production
- Zero intermediate suppliers for quality control
CROSS-INDUSTRY INNOVATION ENGINE
Synergizing agricultural and industrial expertise:
- Enhances fruit quality and boosts yield
- High thermal stability & strong oxidation
- Global ISO-Certified R&D Network
GLOBAL SUPPLY CHAIN ARCHITECTURE
Single-source solutions for worldwide partners:
- 12 patented logistics hubs across key ports
- Dynamic formulation for regional soils
- 72hr emergency response for clients
- Who we are
Mayo – Professional Potassium Nitrate and Fertilizer Manufacturer in China
Mayo offers a wide range of high-quality potassium nitrate products and fertilizers, including potassium nitrate for agriculture, fireworks, optical glass, and concentrated solar power. We specialize in creating tailored solutions to meet the specific needs of our customers, ensuring that our products deliver exceptional performance and value.
As a direct manufacturer,Mayo controls every stage of production, from raw material selection to final processing and packaging. This allows us to ensure that our products are not only environmentally sustainable but also of the highest quality and reliability. We take great care in producing our fertilizers and chemicals, striving to create products that contribute to both agricultural success and the health of the planet.
Choose Mayo for potassium nitrate and fertilizer solutions that are efficient, safe, and environmentally friendly. Our commitment is to provide products that meet your exact requirements while supporting a sustainable future. Trust Mayo to deliver reliable solutions that help grow crops, enhance industrial performance, and protect the Earth.
What We Offer?
Potassium Nitrate
Classified by product usage, we offer five pages for each application:
It is widely used for various economic crops such as vegetables, flowers and tobacco, and can be used as top dressing, water flushing fertilizer, foliar fertilizer and soilless cultivation, etc.
The potassium nitrate content exceeds 99.9%, with extremely low impurities. The contents of impurities such as sodium, calcium and magnesium are all maintained below 40 ppm.
Our potassium nitrate boasts an outstanding purity of over 99.9%, with chloride ion content strictly controlled below 40ppm, carbonate content below 40ppm, and sulfate content below 30ppm.
Our firework special potassium nitrate has been widely praised in the fireworks industry for its extremely low moisture absorption rate and the effect of promoting combustion.
Potassium nitrate, as a high-quality flux in ceramic glazes, can achieve excellent vitrification and a bright surface effect. Its ultra-high purity (>99.6%) can prevent common glaze defects during high-temperature firing
- Customization Made Easy
- Your soil，your formula: precision NPK tailored to your lab results
Stop guessing what your soil needs. As a global specialty chemical manufacturer, we transform your soil test reports into precision-engineered NPK solutions. Simply upload your lab analysis through our secure portal, and our agronomists will craft a custom fertilizer blend addressing: Exact Nutrient Deficiencies Soil Chemistry Correction Crop-Specific Enhancement
- Have a soil test? Great—upload it through our secure portal.
- Don’t have one? No problem—we’ll help you customize anyway.
Upload Reports(Optional)
Accepts ISO-certified lab PDFs or basic crop/soil info – customization available even without a report
Digital Soil Diagnosis
AI-powered gap analysis + human agronomist review
Batch Production
Granulation within 0.5% formula accuracy
Delivery with Insights
Includes application map & nutrient release timeline
Industry & Projects
AGRICULTURE
OPTICAL GLASS
SOLAR THERMAL
FIREWORKS AREA
CERAMIC CRAFTSMANSHIP
Submit a Quick Quote
Why Global Partners Choose Meiao
Our potassium nitrate and fertilizer solutions provide significant benefits across various industries, improving performance and sustainability. Here are the key advantages of our products and services:
Source Factory
We design and manufacture our potassium nitrate and fertilizer products from start to finish, focusing on quality, innovation, and sustainable solutions.
ISO Certification Icons
Our products meet international quality standards, ensuring the best protection for every customer.
Annual Production Capacity Data
Our production capacity ensures supply chain stability and timely delivery to meet global demands.
Served 50+ Countries
We serve customers in over 50 countries, providing high-quality service and support worldwide.
Certification & Patent
- Latest Blogs
Latest News & Events
Hunan Meiao Recognized as a 2024 “Specialized and Innovative” Enterprise in Hunan Province
On April 26, 2024, the Department of Industry and Information Technology of Hunan Province and the Hunan Provincial Administration of National Defense Science and Technology
100457HN | Hunan Meiao Potassium Listed on Hunan Stock Exchange Technology Innovation Board
On May 28, 2025, with the clear sound of the ceremonial gong, Hunan Meiao Potassium marked a major milestone by officially getting listed on the
Fast-Acting And Soil-Nourishing
Choose MAYO! Full-Process Citrus Demonstration Results Show The Outstanding Performance Of Soil-Friendly Fertilizer It’s that critical time of year again for citrus management! Fruit retention
