Mr Wang's nephew Ned runs an immigration and education consultancy firm, New Bridge Education, and the
Herald
understands Mr Wang has referred clients to the company in the past.
It is not clear if this trip to Beijing was a business trip or if he was returning to Beijing to visit his daughter.
Francis Chai, president of the Auckland Malaysian Society, made the same Malaysia Airlines trip last July and said it was a popular flight to Beijing.
Flight MH370 departs Kuala Lumpur at 12.41am (5.41am NZ time) and lands in Beijing at 6.30am.
"The timing makes it popular because it is an overnight flight and so you don't waste a day," said Mr Chai.
"It's really a shock that this has happened because it could have been me or any one of us, and our thoughts and prayers go out to everyone affected."