Legislators and critics have expressed disappointment at the mild tariff cut by CLP Power and called for greater transparency over how electricity tariffs are set. Fred Li Wah-ming, a Democratic Party lawmaker, said the 3 per cent cut was disappointing, given that oil prices had come down since April yet tariffs remained the same. Mr Li also said there was not enough information for the public to judge whether the cut was reasonable and in their best interest. 'The public would like to know how the fuel price was fixed,' he said. How much, for instance, of the new tariff came from the HK$2.1 billion fund that CLP was required to draw on to make electricity cheaper for consumers, he asked. Charles Li Kui-wai, an economics professor at City University, also said both the government and the power company should reveal more information about how much of the overall cost was borne by the consumer. 'The power supplier just can't pass on all the fuel price increase to the consumers,' Professor Li said. 'A power supplier should reasonably bear part of the price increases as well. But the problem now is that we can never tell if that is the case because there is no information disclosed.' Rather than constantly changing tariffs, the government should press electricity companies to invest in developments that would consistently lead to lower prices in the long run, he said. Lam Pun-lee, an associate professor in the finance and accounting school at Polytechnic University, said the government misled the public by claiming some users would see a 10 per cent reduction in tariffs. No figures were provided by the government about how the changes in fuel prices affected the tariff. 'It all depends on the purchasing policy and the deal made by the power company. But we don't know any of those details,' Professor Lam said. He said he expected Hongkong Electric, which was still negotiating with the government on a new tariff plan, might have to increase rates because of rising fuel costs. A government source said the power companies were required to hire an independent auditor to examine their spending. A financial committee was also set up by the government to review the budgets that the electricity companies submitted.