A Chinese official said that all the dairy products currently on sale that were produced after the Sept. 14 nationwide tests met the required state standard.

All the dairy products, including Dumex and Wyeth products, have complied with the chemical's content limit, said Li Yuanping, spokesman with General Administration of Quality Supervision, Inspection and Quarantine.

"Safe milk products produced before Sept. 14 have all been tagged with a special label permitting their sale," Li said.

According to the administration, the labeled products either contain no melamine or are within the legal limit.

Following the nationwide milk scandal in last September, the Health Ministry's Health Supervision Bureau released new rules in October for the dairy industry that requires infant formula to contain less than one milligram of melamine per kilogram.

A maximum 2.5 mg per kilogram is allowed for liquid milk, milk powder and food products containing at least 15 percent milk.

Although Li Yuanping and other officials have reconfirmed that the imported milk products of Dumex and Wyeth were also safe -- with more than 6,500 samples tested in September throughout the country -- parents are not happy with the official test results.

Jiang Yalin, the mother of a 20-month-old suffering from a kidney ailment, has organized a group of parents in Kaili of southwest Guizhou Province to seek compensation from baby milk food firms.

The country's health experts are trying to find out the reason behind the increasing number of kidney stone cases among the children.

Ma Yangchen with the health ministry's press office said that the ministry has asked local health administrations to carry out medical research on kidney ailments among children.

(Xinhua News Agency March 3, 2009)