Invitation to tender using negotiated procedure for design and construction of 350 m-long, 1600 DNS pipejacked tunnel together with launch and target shafts, supply and installation materials, and integration into existing system. More information, specs and docs from Olaf Eyke at Open Grid Europe in Essen, tel +49 201364214213, e-mail olaf.eyke@open-grid-europe.com, to whom tenders or requests to participate must be sent. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=222299-2012. 29/12.