Agrochemicals maker Syngenta's logo is seen in front of the company's headquarters in Basel in this February 6, 2013 file photo. Syngenta AG is pressing ahead with U.S. sales of a new corn trait that ... more 
Agrochemicals maker Syngenta's logo is seen in front of the company's headquarters in Basel in this February 6, 2013 file photo. Syngenta AG is pressing ahead with U.S. sales of a new corn trait that is not approved in China, fueling concerns of another jarring GMO trade quarrel with the world's fastest-growing food importer. Picture taken February 6, 2013. To match Analysis SYNGENTA-CORN/CHINA REUTERS/Arnd Wiegmann/Files (SWITZERLAND - Tags: BUSINESS AGRICULTURE LOGO) less 
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Reuters | Photo By ARND WIEGMANN / REUTERS
Tue, Jan 21, 2014 12:39 AM EST