Additional Information This communication does not constitute an offer to buy or sell or the solicitation of an offer to sell or buy any securities. This communication relates to a proposal which 3D Systems has made for a business combination with Stratasys. In furtherance of this proposal and subject to future developments, 3D Systems (and, if a negotiated transaction is agreed, Stratasys) may file one or more registration statements, proxy statements or other documents with the SEC.