The Keystone Group Head Offices

Keystone Engineering Ltd.

Keystone Technical Services (2004)

Gibor - Sport Tower

7 Menachem Begin Street

Ramat - Gan, 52681

ISRAEL

Alternative mail address: P.O.B. 84 Givataim 53100, ISRAEL

Tel. Operator: + 972 - 3 - 752 1011

Fax. General: + 972 - 3 - 752 0090

E-mail: keystone@bezeqint.net