A major Chinese dairy maker has refuted a media report alleging that it added toxic industrial gelatin to its yogurt products, the Xinhua News Agency reported over the weekend.

In a statement released Friday, Beijing Sanyuan Food Co said its production materials were purchased from the world's leading edible gelatin makers.

Quality tests have shown that both the materials used in the production of the edible gelatin and the final gelatin products are up to regular standards, it said.

The dairy products were sold after passing quality tests, Beijing Sanyuan said.

L? Shuqin, vice president of Beijing Sanyuan, said the company has a tough screening system for suppliers to ensure that all materials are up to standard.

The 21st Century Business Herald newspaper carried a report on Friday alleging that the Beijing Sanyuan Food Co once purchased toxic industrial gelatin from Gelita Cangnan Gelatin Co in East China's Zhejiang Province.

The report said its reporters obtained documents showing that the dairy producer bought more than 20 tons of gelatin from the German-owned firm, which was embroiled in an industrial gelatin scandal from 2013 to the beginning of 2014.

China Central Television, the country's national broadcaster, said in a special report on March 15, World Consumer Rights Day, that Gelita Cangnan allegedly used leather scraps bought from leather companies to make gelatin that was later used for food and drug production.

Beijing Sanyuan Foods Co is the only major dairy firm that was not implicated in the country's infant formula scandal in 2008 that left at least six infants dead.