TTM Technologies Inc. has received all required foreign regulatory approvals for its pending $368 million acquisition of St. Louis-based Viasystems Group Inc. TTM said in a release Tuesday that the deal has been approved by the Ministry of Commerce of the People's Republic of China, the Federal Cartel Office of Germany and the Estonian Competition Authority. The deal , which the companies struck in September, is still subject to review by the U.S. Federal Trade Commission and approval by the Committee on Foreign Investment in the United States, and other customary closing conditions.