Quality

At Shandong Huayuan, we understand that the quality of humic acid products is crucial for agricultural production and environmental sustainability. Therefore, we have established a stringent Quality Control Profile to ensure that every product we deliver meets our high standards for performance and safety.

The humic acid raw materials used in our company' s production are all from our own weathered coal mine, which is located in Fukang Area of Xinjiang, covering an area of 2.43 square kilometers. It is one of the rare humic acid mining areas with excellent reserves and high quality humic acid in China. At present, the detected content of humic acid is over 70% and the quantity of recoverable humic acid is more than 15 million tons. The CEC of humic acid raw material has been tested by many authorities as high as 40o-450meq/100g. It is the best mineral resource for producing all kinds of humic acid products.

Our manufacturing process follows strict Standard Operating Procedures (SOPs). From extraction and purification to granulation and packaging, every stage is meticulously monitored by our experienced technicians. We implement multiple quality checkpoints throughout the production line to maintain product uniformity and stability, guaranteeing that each batch is identical in quality and performance.

Before any product leaves our facility, it must pass a rigorous series of lab tests. We conduct comprehensive analysis on the following key parameters:

• Humic Acid & Fulvic Acid Content: Measured using standard industry methods to ensure accurate concentration.
• pH Value & Water Solubility: Critical for product application and stability.
• Heavy Metals Analysis: Using advanced ICP-OES technology, we test for lead (Pb), cadmium (Cd), and arsenic (As) to guarantee our products are safe for the environment and agricultural use.

Our commitment to quality is recognized by leading industry certifications. We adhere to international standards and are proud to be ISO 9001 certified for our quality management system, providing our customers with an additional layer of confidence.

All our products are packaged in durable, UV-resistant bags to ensure quality and integrity during shipping and storage. Our storage facilities are designed to protect the products from environmental factors, preserving their potency and effectiveness until they reach our customers.

Quality control is not just a process for us—it’s a philosophy. We constantly seek feedback from our customers and leverage our R&D efforts to refine our processes and improve product quality, ensuring we remain at the forefront of the humic acid industry.