Wong, a five-year veteran with H&K, will report to Asia-Pacific president and COO Vivian Lines.
"I look forward to working with my colleagues in the region and globally to offering best-in-class PR talents and services to marketers in tackling diverse social, economic and technological challenges across Asia Pacific.” said Wong.
"Technology clients represent the single largest business sector for Hill & Knowlton in Asia Pacific," said Lines.
"We need to provide them with a strong, cohesive technology practice that links our offices, practices, and specialised services both regionally and globally. Voal has demonstrated his ability to do this across Southeast Asia for the past two years, and now has the opportunity to take on a full Asia-Pacific remit. He is a strong example of the depth of talent we are able to develop and promote from within the firm."