Head Office: Djibouti Str., In front of Pol. Security Building, Sana'a
Tel/Fax: (967-1)441500 -Fax: (967-1)441544 /5-274148-274169, P.O. Box: 1187, 1105, 1108
e-mail: national@natco.com.ye,
Web site: www.natco-yemen.com

Head Office: Bab Al-Salam - In front of Al-Attar Corporation, Below Al-Kheder Building
P.O. Box: 4053 - Sana'a - Yemen.
Tel: (967-1)513055-245511 - Fax: (967-1)513066, Mobile: (967)777253379
e-mail: nassersaeedalabed@hotmail.com , alabed@yemenbusiness.net

Head Office: Al-Zubairi Str, Behind Ministry of Youth & Sports, Sana'a - Yemen
Tel: (967-1)408193 - FAX: (967-1)403135 - PO Box: 20525
e-mail: alahlasi@y.net.ye ; al-ahlasi21@yemen.net.ye

Head Office: Algeria Str. , Sana'a - Yemen.
Tel: (967-1)446470 - Fax: (967-1)448119
e-mail: SemSmart@SemSmart.com , Web site: www.semsmart.com