Credit Suisse maintained Johnson Electric (0179.HK)'s outperforming market rating, and the target price was set at HK$6.20. The market is concerned that rising copper costs may have a potential impact on Johnson Electric Holdings' locomotive products, but Credit Suisse said the time lag between rising material costs and product price adjustments had limited impact on the company's profit margins. Credit Suisse added that the belief that profitability is highly correlated with fluctuations in raw material prices is wrong. According to the bank, Johnson Electric's motor vehicle products business continues to recover at a low level, and the business was hit hard during the financial crisis. The stock fell 4.8% yesterday to close at HK$4.53.