Tianhe Magnetics (also known as Baotou Tianhe Magnetics Technology and 包头天和磁材科技股份有限公司) is a manufacturer of rare-earth permanent magnet materials. It produces neodymium-iron-boron and samarium-cobalt magnets, as well as semi-finished and surface-treated parts. The company serves manufacturers in the automotive, wind power, aerospace, rail transport, consumer electronics, and home appliance industries.