CHINA's four Hong Kong advisers in the expert talks on next year's budget yesterday revealed they will take an unprecedented oath to keep the contents confidential. It is an attempt to allay conflict of interest fears but will not be legally binding, as the advisers will only take their oath in Beijing. Nellie Fong Wong Kut-man, co-convenor of the Preliminary Working Committee's economic sub-group, said they would take the oath at next month's PWC plenary session in the Chinese capital. 'The oath will be about what our responsibilities are over confidential issues. It will be addressed to the National People's Congress, rather than the Hong Kong Government,' she said. Six days of Joint Liaison Group(JLG) expert talks on the budget begin in Hong Kong tomorrow as part of the process of preparing next year's financial package. Also yesterday, Beijing accused Britain of having 'distorted the facts' during last week's briefing by JLG team leader Hugh Davies. In a detailed account of recent airport talks, Xinhua (the New China News Agency) revealed China had conceded the Government could provide 'additional equity support' for the Airport Authority and Mass Transit Railway Corporation 'on certain conditions', in an effort to strike a deal on the Financial Service Agreements for the two bodies. But the official news agency accused Britain of putting obstacles in the path of the agreement by making fresh demands and insisting this extra equity be available 'on any conditions'.