Egypt's Global Depositary Receipts (GDRs) listed in the EGX have witnessed a decline during Monday's London Stock Exchange (LSE) trading. Orascom Telecom Holding (OTH) (ORTE)'s CD dipped 12.3% to close at $ 31.3. Additionally, Orascom Construction Industries (OCIC) slumped 20.3% to close at $ 54.42.