She was the sole director and shareholder of two wine-making companies, Waiheke Island's Kennedy Point Group Ltd and Central Otago's Carrick Wines Ltd.
Carrick Wines Ltd had been for sale for about 18 months before Zhong's death and was put into receivership after her death.
It was then listed for sale and put up for tender earlier this month. Tenders closed on Tuesday, Bayleys Real Estate agent Gary Kirk said.
He said it had been a short tender process of about 15 days.
Despite that, he said there had been strong interest locally, nationally and from overseas.