Asia's richest woman, Nina Wang, is refusing to divulge the source of the $1.5 billion she allegedly used to acquire a major shareholding in a key Chinachem company, a court heard yesterday. Ms Wang's counsel, John Scott, SC, told the Court of Appeal that she did not have time to answer all questions on the share acquisition put by administrators of the estate of her husband, Teddy Wang. Court-appointed administrators Brian Cheung Yat-ming and Tan Man-kou secured in June a judge's order authorising the questioning of Ms Wang over a long-running probate battle with her father-in-law, Wang Din-shin. Mrs Wang is appealing against the court order. Mr Cheung suspected the money may have come from Teddy Wang's multi-billion-dollar estate or the Chinachem group. Mr Scott said the Chinachem chairwoman had answered some of the questions but found the rest so 'unfortunately worded' and wide-ranging that she could not answer. He said it was 'impossible for a wealthy woman' to identify the source of her wealth. But Geoffrey Ma, SC, for the administrators, responded 'we're not asking about the source since Adam'. Mr Ma said Ms Wang was asked to give the source of $1.5 billion she was said to have used to acquire 15 million 'B' shares in Chime Corporation between August 23 and September 7, 1990. The administrators last month launched an action in the High Court, seeking to set aside the allotment of the shares. In a subsequent sworn statement, Ms Wang said she pumped $1.5 billion into Chime to pay its $1.48 billion debt to Christoban. In return she was issued with the 15 million Chime 'B' shares. Mr Scott branded the administrators' action over the shares as hostile. Mr Justice Anthony Rogers and Mr Justice Azizul Suffiad reserved judgment.