Inner Mongolia Yijiu Environmental Protection Technology Co., Ltd. is located in Chifeng City, in the southeastern part of Inner Mongolia Autonomous Region, which boasts abundant mineral resources. The company is conveniently situated near the Chidai Expressway and the Chichao Expressway, with excellent transportation links via railways and highways. Volcanic rock filter media are produced by mining, crushing, and screening volcanic rock. They serve as biological carriers in biological water treatment processes. Our products—including quartz sand filter media, manganese sand filter media, zeolite filter media, and oilfield quartz sand—are widely used in wastewater treatment, biological odor removal, constructed wetlands, landscape gardening, and other fields. Quartz sand is also employed in water treatment systems for power generation, metallurgy, coal gas, textiles, printing and dyeing, petroleum, and urban drainage industries.

      We consistently adhere to the philosophy of “small enterprise with a big vision, down-to-earth work, and honest management.” We regard quality as the lifeblood of the Yijiu brand and, drawing on our deep understanding of China’s water treatment industry, continuously provide customers with high-quality products and services. Thanks to the trust of our customers and the support from all sectors of society, our company has maintained a high growth rate and strong development momentum. Both the production and sales volume of water treatment materials and our revenue have steadily increased, and the reputation of the Yijiu brand continues to improve.