A staffer removes products of Baby formula maker Dumex from shelves at a supermarket in Shanghai, east China, Aug. 5, 2013. China's importers on Sunday began to recall and seal products produced by New Zealand dairy giant Fonterra due to safety concerns over its allegedly contaminated whey protein that could cause botulism. The recall began after China's General Administration of Quality Supervision, Inspection and Quarantine (AQSIQ) announced a list of four domestic companies that have imported whey products that may be contaminated with clostridium botulinum. Shanghai-based Dumex has produced 726.552 tonnes of its own milk powder products with the potentially tainted materials and 420.188 tonnes have already been sold in China's domestic market. (Xinhua/Ding Ting)