Hong Kong: The Centre for Food Safety (CFS) has found a trace amount of malachite green in a freshwater grouper sample.
A CFS spokesman said it detected malachite green from the sample taken from a stall in Kowloon City Market.
"The test result showed that it contained malachite green at a level of 5.1 parts per billion. Malachite green is a type of industrial dye and has been used for treating infection in fish," he said.
"Major agricultural economies such as the Mainland, the European Union, Canada and the US prohibit the use of the chemical in food fish. According to the Harmful Substances in Food Regulations (Cap 132AF), no food sold in Hong Kong is allowed to contain malachite green."
The vendor has stopped selling the product and the CFS is attempting to trace the source and distribution of it.