About 1,000 companies producing leather goods, shoes and bags in…Guangdong…have had their business suspended after being suspected of using harmful glues...[m]ost…were found to have no operation licenses or had violated laws…Guangzhou police have also detained six people who are suspected of illegally producing and selling poisonous glues…37 migrant workers who worked in leather, shoe and bag companies…suffered from glue poisoning in November. Four…died…[T]he number of occupational disease patients has been on the rise since 2003...a lawyer…attributed the growing number…to migrant workers' poor understanding of their legal rights relating to health and safety.