The Mexican government has extended for 4 years its tough 10-year-old anti-dumping duties, ranging from 165 to 1,105 percent, on certain types of shoes imported from China. One exception will be Nike, which won a court injunction in December of 2002 that exempted it from the duties. China was the source of only 403,000 of the 18 million pairs of shoes imported into Mexico in 2001, thanks in part to the anti-dumping duties.