Hong Kong must increase its awareness of being part of China, and contribute to the nation with the 'overall national interest' in mind, former chief executive Tung Chee-hwa said yesterday. Mr Tung, a vice-chairman of the Chinese People's Political Consultative Conference, also said Hong Kong was going through a turbulent period and some of its current strengths would disappear and the city must look for new opportunities. 'Hong Kong's role will change amid this turbulent time of change,' Mr Tung told a seminar on China's development. 'Some of our current edges will start to disappear, so we have to create new strengths based on our foundations.' He said these included greater integration with the Pearl River Delta region and using the city's strength in professional sectors to help development of mainland businesses. Mr Tung told the seminar, which was also attended by his successor, Chief Executive Donald Tsang Yam-kuen, business tycoons and academics, that Hong Kong needed to understand more about the nation when plotting its way. 'We have to care and understand more about the overall development of the nation. Everything we do has to be considered in light of the overall national interest when we contribute to the nation's development. 'We have to realise that we are part of the Chinese nation. In our national development, we are not bystanders but of the same body, sharing the same fate,' Mr Tung said. Meanwhile, business tycoons warned that Hong Kong should be aware of its weaknesses to avoid losing its present status, adding that it needed to reposition itself. Hang Lung Group chairman Ronnie Chan Chi-chung said the city's weaknesses included failing to search for developments in new areas and requesting favours from Beijing. 'Hong Kong used to make contributions to the country. After the handover, we have made fewer contributions and even created difficulties for the mainland.' Hopewell chairman Sir Gordon Wu Ying-sheung said a way out for Hong Kong was to provide services in response to the mainland's needs. Given the good education provided by Hong Kong universities, he suggested that more mainland students be allowed to study here. Wharf chairman Peter Woo Kwong-ching urged the government to persuade the mainland to allow more capitalists to migrate to Hong Kong and boost the local economy.