Justice Minister Judith Collins walked away from reporters this morning when faced with questions over who paid for a dinner she attended with close friends from dairy exporter Oravida and a senior Chinese official in Beijing last year.
Ms Collins has been under pressure since last week revealing what she says was a private dinner but which she had previously kept from Prime Minister John Key and the media.
The Opposition say the dinner marked a conflict of interest given the presence of a senior Chinese border control official, who she says was a friend of Oravida boss Stone Shi. Mr Shi's company was, according to its managing director Julia Xu who was also at the dinner, facing difficulties getting milk into China following the Fonterra botulism scare.
This morning, Ms Collins said she did not know who paid for the meal.
"I've already said I didn't pay for it. (Senior adviser) Margaret Malcolm didn't pay for it, the taxpayer didn't. I don't know who did and I haven't asked."