Chicago-based True North Communications purchased 49% of Imada Wong Communications Group, which specializes in Asian-Pacific American Marketing Communications. The Los Angeles-based shop adds another dimension to True North’s expanding New America Strategies Group (NASG), an effort to offer clients a full spectrum of multicultural solutions under one umbrella. Other NASG parts include African-American agencies Don Coleman Advertising and Stedman Graham & Partners, and Hispanic agency SiboneyUSA.