Beijing apologised to Taiwan yesterday for Sanlu's tainted milk products and promised to step up inspections.
But mainland officials denied Taiwanese reports that a coffee creamer produced by another mainland company contained melamine.
'We feel deeply sorry for the hazards Sanlu formula might have brought to Taiwan consumers,' said State Council spokesman Li Weiyi .
He said officials had immediately alerted their Taiwanese counterparts after the mainland's quality watchdog reported that 1,000 bags of powdered milk sold by Sanlu to Taiwan in June were found to contain melamine.
The 21 other dairy companies whose products were contaminated did not sell any products to Taiwan.
Mr Li's remarks came after a large food and beverage supplier in Taiwan, King Car Industrial, recalled eight products containing cream imported from Duqing, a dairy company based in Shandong , on Sunday. The products, used as a coffee creamer and in instant chicken and corn soup, all tested positive for the chemical.
Mr Li claimed there was no evidence of melamine in the products.
Duqing, however, insisted they had been found to be problematic.
Taipei's United Evening News quoted sources as saying the raw materials that Duqing brought for testing were dated March, May and July but the problem-free products that the mainland's Taiwan Affairs Office cited were dated October and November.
The vice-chairman of Taiwan's Mainland Affairs Council, Johnnason Liu, said yesterday that the cause of the discrepancy in the test results might lie in the difference in the batches of products subjected to testing.
Mr Li said the Taiwan Affairs Office would add food safety to the topics for the second round of talks between the mainland's Association for Relations Across the Taiwan Strait and Taiwan's Straits Exchange Foundation, the quasi-official bodies for cross-strait talks.