Descartes Launches Conditional Voluntary Cash Tender Offer to Acquire All Outstanding Shares of Porthus at a Price of EUR 12.50 Per Share WATERLOO, Ontario, Feb. 22, 2010 (GLOBE NEWSWIRE) -- The Descartes Systems Group Inc. (Nasdaq:DSGX) (TSX:DSG), a federated global logistics network, has, through its wholly-owned subsidiary Dexxcartes...