The Shindengen Group primarily used trichloroethylene in cleaning processes.
At our domestic business sites, we completely discontinued the use of trichloroethylene in 1997 and began sequential investigations into its impact on soil at sites with a history of use. Based on these findings, we have maintained close communication with relevant authorities, ensured compliance with the Soil Contamination Countermeasures Act, and implemented thorough management to prevent any health hazards. In February 2012, we completed soil remediation at one site where trichloroethylene contamination had been identified.
In addition, other designated hazardous substances related to soil contamination, such as fluorine compounds and lead contained in solder, are still used in our manufacturing processes. However, we strictly manage these substances in accordance with environmental regulations, including rigorous daily inspections, to prevent any environmental impact.