Local wholesalers have called on the government to test eggs for melamine before they are imported. The call came as mainland authorities said tests on eggs from Shanxi province had found 3.5mg of melamine per kilogram - or 3.5 parts per million. Earlier tests by Hong Kong officials on eggs from Liaoning and Hubei provinces had shown excessive melamine. The Centre for Food Safety said on Tuesday that an egg sample taken from Star Seafood Restaurant on Ngau Tau Kok Road and produced in Hubei on October 10 had 2.9ppm of melamine, 0.4ppm more than the legal limit. Its eggs were supplied by wholesaler Sang Tai Hoo. The company's owner, Chan Yip, said the Hubei imports bore a health certificate issued by Jingzhou Entry-Exit Inspection and Quarantine Bureau to prove that they were free of bird flu and Sudan IV dye. But he said the mainland authorities did not test for melamine. Mr Chan, 74, said the Hong Kong government should do melamine tests on mainland eggs before they were imported. 'There is not much we can do about it ... we fear that people may fall ill after eating tainted eggs.' He said his company had imported 800 boxes of eggs produced on October 10 from Hubei and all of them had been sold. Each box had 360 eggs. He said he would not recall the eggs but told his clients to dump them. His son said 70 to 80 per cent of their eggs were sent to about 20 restaurants under the Star Seafood Restaurant (Group) while the remainder went to various retailers. He added that they switched to Thailand eggs yesterday. William Ting, sales manager of egg wholesaler Abel (Asia Pacific), said it suspended Hubei imports about a month ago and switched to eggs from Beijing. Mr Ting said it would be great if the Hong Kong government tested mainland eggs for melamine at the border. 'It will be more trustworthy if the government does it. Even if mainland producers provide me with certificates saying that the eggs are safe, we can't be rest assured,' he said.