Multitech began as a sales representative for foreign firms eight years ago, and Chang, working at another company, served as the American business manager and market analyst.
宏美國分公司，在八年前台北宏初創時，就在美國註冊成立。早期宏的主要業務是代理、引進國外資訊產品，張國華理所當然地成為資料來源及業務代表。