ST. LOUIS--(BUSINESS WIRE)--Viasystems Group, Inc. (NASDAQ: VIAS) announced that at a special meeting of Viasystems’ stockholders held today, the stockholders approved the adoption of the merger agreement by and among Viasystems Group, Inc., TTM Technologies, Inc. (“TTM”) and Vector Acquisition Corp. (“Merger Sub”), a wholly-owned subsidiary of TTM. Pursuant to the merger agreement, Merger Sub will be merged with and into Viasystems, with Viasystems as the surviving corporation and a subsidiary