NanoEnTek Inc. 851-14, Seohae-ro, Paltan-myeon, Hwaseong-si, Gyeonggi-do, 18531, Korea Tel : +82-2-6220-7940, Fax : +82-2-6220-7999NanoEnTek Inc. (USA) 240 Bear Hill Road, Suite 101, Waltham, MA 02451, USA / Tel: +1-781-472-2558, Fax: +1-781-790-5649 …