Spherical magnesium oxide is an emerging filler in TIMs, offering both excellent thermal conductivity and electrical insulation. Its spherical morphology enables superior flowability and high packing density, helping create efficient thermal pathways. With high thermal and chemical stability, it ensures reliable performance even under elevated temperatures. Due to its relatively low density, it is also well-suited for lightweight electronic materials and battery systems. Customizable in particle size and surface treatment, spherical MgO provides flexible control of dispersion and viscosity, making it ideal for advanced formulations.