Dear customer, Starting at 17:30 CET tomorrow, Thursday May 27, we will perform a hardware maintenance in the GCF TEST environments, one site at a time. For the dual site environment GCF2, this means that one site will be available at all times. For the single site environments GCF3 and GCF4 (OTF) one of the systems will be unavailable. We estimate that this should take one hour at the most. Best regards, Tech Support Nordic Operations Transaction Services Nordics INET: +46 8 405 6410 (06:30-19:30 CET) SAXESS: +46 8 405 6580 (06:30-19:30 CET) Finnish: +46 8 405 6860 (06:30-19:30 CET) Tullvaktsvägen 15 105 78 Stockholm, Sweden operator@nasdaqomx.com www.nasdaqomx.com