National Amorphous and Nanocrystalline Alloy Engineering Research Center (NAC), located in Beijing, P.R.China, is No.1 manufacturer of amorphous and nanocrystalline magnetic materials in China.

The foundation of NAC was established in 1975 as a division of CISRI. In 1999 NAC was acquired and merged into a new company called AT&M Co. LTD. as Amorphous Product Branch.

With an exciting background of Chinese pioneering achievements, patents and know-hows, NAC develops and produces amorphous and nanocrystalline soft magnetic alloys in form of ribbons and cores as well as components which are used in a wide spectrum of applications including, household appliances, computers and peripherals, switch mode power supply, UPS, car audio equipment, sensor and protection in high or low voltage electrical distribution system, telecommunication and more. NAC represents more than 70% domestic market in amorphous magnetic products, now is extending its products into international market