Yi Jia Refractories Co., Ltd. is a manufacturer and trading company based in Xingtai, China, specializing in the research, development, production, sales, and service of hollow microspheres. Established in 1989, the company employs between 201 and 300 people and operates a factory. They are known for their professional manufacturing of hollow microspheres, including Cenosphere, hollow beads, and fly ash, which possess properties such as fine particles, hollowness, light weight, hardness, high temperature resistance, and heat insulation. These products are widely utilized in refractory, insulation materials, oilfield cementing, aerospace, coatings, and building materials. Yi Jia Refractories Co., Ltd. has established a robust management model and a comprehensive production and quality control system. The company actively engages in international trade, exporting its products to Southeast Asia, the Middle East, Europe, and other global regions, with a notable presence in the Australian market.