All three candidates in the Engineering functional constituency pledged last night that they would not be affected by conflicts of interest. Provisional legislator Dr Raymond Ho Chung-tai said yesterday that he was a consultant on a number of infrastructure projects in the mainland and Hong Kong. 'But I do not think there is any problem as long as we declare our interest,' he told an RTHK election forum. He added that to represent the sector it was necessary to have substantial connections within it. Dr Ho said that former legislators representing the sector, including Cheng Hon-kwan and the late legislator Samuel Wong Ping-wai, had also been consultants on a number of infrastructure projects. 'I don't think there is such a problem and I wonder why it has been raised at this time,' Dr Ho said. One of Dr Ho's rivals, Airport Authority member Dr Wong King-keung, said: 'Most of my projects are in the mainland and I do not think I have any conflicts of interest.' The remaining candidate, John Luk Wang-kwong, is assistant to the chairman and chief executive of Sun Hung Kai Properties. Mr Luk said he was a qualified arbitrator and this showed he would have no conflict of interest.