VALENCIA, Calif., July 6 -- 3D Systems Corp. and DTM Corp. have extended the tender offer for all the outstanding shares of common stock of DTM until midnight Eastern Daylight Time on Tuesday, July 24, in order to continue negotiations for purposes of completing a settlement agreement with the Department of Justice. The tender offer had been scheduled to expire on Tuesday, July 10. "We are optimistic that a settlement with the Justice Department can be reached in the following weeks that will permit the tender offer for DTM to proceed to completion," said Brian K. Service, 3D Systems' president and CEO. "We are encouraged by the settlement discussions that are taking place and remain committed to working with 3D Systems to complete the transaction," said John S. Murchison, III, DTM's president and CEO. On June 18, 3D Systems and DTM agreed to extend the tender offer in part to pursue a settlement of the civil action filed by the Antitrust Division of the US Department of Justice on June 6.