Magnesium oxide (MgO) has attracted significant attention in thermal conductivity applications due to its higher thermal conductivity compared to alumina, lower hardness, and lower cost. Spherical MgO powder, with its isotropic properties, high fluidity, and high dispersibility, is also considered a strong competitor to spherical alumina. A notable example of industrialization in this field occurred in 2020, when the Japanese company Denka introduced a product with a thermal conductivity up to 1.5 times that of spherical alumina, drawing substantial interest from the 5G and new energy vehicle markets.
To explore the potential of magnesium oxide in thermal conductivity, domestic enterprises in China have also invested heavily in research and development, achieving encouraging progress. Hebei Messi Biology Co., Ltd. (Messi Biology) is a national high-tech enterprise, a “Specialized, Refined, Differential, and Innovative” (SRDI) enterprise of Hebei Province, and a national science and technology enterprise. Its core business focuses on the R&D and production of magnesium salt series products, including magnesium oxide, magnesium carbonate, magnesium sulfate, and magnesium hydroxide. Its recently introduced spherical magnesium oxide, single crystal magnesium oxide, and hexagonal plate-like magnesium hydroxide can significantly improve properties such as thermal conductivity, electrical insulation, flame retardancy, and mechanical performance.
Company Headquarters: Xingdong New Area, Xingtai, Hebei Province
Messi Biology is an integrated entity managing the entire production process from raw materials to finished products. Its subsidiary, Tibet Mag Tech Co., Ltd., holds the independent development rights for the hydromagnesite mine in Baingoin Lake, Nagqu, Tibet, which has a proven ore reserve of 55 million tons and a prospective reserve of 100 million tons. Additionally, it has established a 10,000-ton high-end hydromagnesite powder deep processing production line in the Zangqing Industrial Park.
Currently, Messi Biology utilizes various production processes, such as the brine method and the ore method, enabling the manufacture of different product grades, including pharmaceutical/food-grade, high-purity nano-grade, and general industrial-grade. The company’s annual production capacity reaches 50,000 tons of magnesium oxide, 30,000 tons of magnesium carbonate, 60,000 tons of magnesium hydroxide, and 10,000 tons of magnesium sulfate. Its self-developed pharmaceutical/food-grade and high-purity nano-grade magnesium salt series meet advanced industry standards and have obtained certifications such as US FDA, HALAL, and FSSC22000. The company also offers customized, application-specific products to meet the diverse and specialized requirements of customers across different industries.
Magnesium oxide is primarily used in industries such as medicine and food, metal extraction, electronic materials, rubber and plastics, composite materials, optical glass, aerospace, military and nuclear industries, automotive parts, and 5G advanced materials. Messi Biology integrates the chemical characteristics of magnesium oxide with its morphology and surface properties to expand the application scope of special-morphology magnesium oxide. Beyond thermal conductive fillers, potential applications for spherical magnesium oxide include special ceramic preparation, sintering aids, and chromatographic separation fillers for alkaline environments.
Messi Biology has also developed series of magnesium hydroxide and magnesium carbonate products. Magnesium hydroxide is mainly used as an inorganic flame retardant filler. It features advantages such as being halogen-free, non-toxic, smoke-free, thermally stable, and non-corrosive. Due to its safety and environmental friendliness, it is widely applied in plastics, rubber, cables, and other industries. In addition, food- and pharmaceutical-grade variants can be used for anti-caking, antacid, filtration-aid, and antibacterial purposes. Apart from serving as a precursor to magnesium oxide, magnesium carbonate is widely used for reinforcement filling, thermal insulation, sports grip (anti-slip), and food additives.
Summary
Established in 2015, Messi Biology maintained its growth momentum during the COVID-19 pandemic, achieving steady expansion in scale and doubling its operating revenue. Its pharmaceutical/food-grade and high-purity nano magnesium oxide are well-recognized within the industry. The newly introduced magnesium oxide series for thermal conductivity applications demonstrates the company’s commitment to technological innovation, and the company looks forward to broader engagement and application within the industry.