Chang takes up the role after being with the firm for the last 12 years, most recently as a director in the Taiwan office.
During her time with the firm she has been involved in building client relationships, as well as product design and development.
Tim Balbirnie, chief executive officer of Synovate in Asia Pacific, said: "I am delighted to make this promotion, acknowledging Jenny's enormous contribution to our business.
"She has also been instrumental in introducing innovative solutions to Taiwanese clients."
Prior to joining Synovate, Chang worked with Frank Small & Associates Taiwan.
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