Lawmakers still want the chief executive to face the Legislative Council on Wednesday over allegations of collusion and corruption despite a promise to review the rules of conduct. Donald Tsang Yam-kuen explained yesterday in an article in the Sunday Morning Post and on a Commercial Radio programme details of trips he had taken on private yachts and private jets, as well as his agreement to rent a Shenzhen penthouse from mainland property tycoon Bill Wong Cho-bau. Tsang denied accusations of collusion, conflict of interest or bribery but admitted he could have been more careful when accepting the hospitality of Hong Kong tycoons. He said he would fully co-operate with any probe by the Independent Commission Against Corruption. 'The recent incidents have taught me a lesson, that I have to be more sensitive in politics and be very careful when accepting hospitality,' he said on the radio show. Tsang said he paid the market rate to lease the 6,500 sq ft penthouse in the East Pacific Garden complex from Wong - a major investor in the Digital Broadcasting Corporation, which recently obtained special approval from the Chief Executive in Council to allow former education minister Arthur Li Kwok-cheung to be appointed DBC's chairman. Li should have been barred under the Telecommunications Ordinance from accepting the post, as his brother, David Li Kwok-po, is a director of another media company, PCCW. 'I admitted that I did not declare the penthouse in Shenzhen, because I was not aware of the need [to do so] and I had not decided to rent the penthouse yet,' said Tsang, who emphasised that his relations with Wong did not affect the Executive Council's decision. The East Pacific property group released a statement yesterday saying the cost of decorating the penthouse was less than three million yuan (HK$3.69 million) - in contrast with media reports that it cost more than 10 million yuan - and confirmed Tsang would pay the market rate of 800,000 yuan (HK$985,000) per year. Tsang has appointed an independent panel to review the rules designed to prevent potential conflicts of interest. Former chief justice Andrew Li Kwok-nang will lead a five-member panel, on which will sit Hong Kong Economic Times Holdings chairman Lawrence Fung Siu-por, Chinese University economics professor Liu Pak-wai, Jockey Club chairman Brian Stevenson and Stephen Yau How-boa, the chief executive of International Social Service (Hong Kong). Brian Fong Chi-hang, a lecturer in social studies at City University, said there were loopholes in the existing rules requiring politically appointed officials to declare their interests. 'There should be a system in future for the chief executive to make public, regularly, advantages and gifts he receives,' Fong said. So Ping-chi, former chairman of the Senior Government Officers Association, said Tsang must explain himself to Legco and the conflict-of-interest rules for civil servants should also apply to the chief executive. On an RTHK public affairs programme yesterday, Democratic Party lawmaker James To Kun-sun and Starry Lee Wai-king of the Democratic Alliance for the Betterment and Progress of Hong Kong said Tsang's setting up of the review panel had failed to clear doubts over his alleged collusion with tycoons. 'The committee is only to review the rules and not Tsang's case ... Tsang has to apologise immediately,' To said. Civic Party leader Alan Leong Kah-kit repeated his call for Tsang to face lawmakers on Wednesday. Meanwhile, hundreds of protesters marched to Government House in a protest organised by the Labour Party yesterday, urging Tsang to step down. Party chairman Lee Cheuk-yan criticised Tsang for shifting the public focus from him to the independent panel. On Saturday, 20 Democrats marched on the government headquarters at Admiralty. A spokesman for the Chief Executive's Office said the request to attend a question-and-answer session in Legco was being considered.