Campbell Soup Co. has insisted it plans to work with the Chinese government after the country banned imports of three types of cookies from PT Arnott’s Indonesia, a subsidiary of the US food group.

China’s product quality body, the General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ), has said the cookies contained excessive levels of aluminium.

Some 1.6 tonnes of the biscuits were found to contain aluminium levels ranging from 280ppm to 320ppm. The Chinese standard is 100ppm.

Campbell said it is conducting a rigorous investigation into the matter with quality teams in North America and Asia.

“We are testing samples of the products in question along with ingredients,” Toni Jones, a spokesperson for Campbell Arnott’s Australia, told “We plan to cooperate with the Chinese authorities. The quality and safety of our products are Campbell’s top priority.”

AQSIQ said it has asked Indonesian authorities to take action to improve the safety of food exported to China. China also banned imports of fish products from Indonesia this month, after finding heavy metals and drug residues in samples.