China has rejected pork shipments from the US and Canada because they contain a banned additive, the Financial Times reported. This comes despite a shortage of pork, China's staple meat, being chiefly responsible for the country's inflation rate hitting a 10-year high in August. In all, 8.37 tons of frozen pork kidney and 24 tons of frozen pork chops were denied entry on the grounds that they contain ractopamine residue, an adrenal stimulant used to make the meat leaner. China said the action was consistent with its 2002 ban on the use of additives in animal feed and water. This has not stopped links from being made to recent retaliations by Beijing in response to US rejections of Chinese-made goods on safety grounds.