BEIJING (Agencies): Daimler AG will slash its stake in the Denza electric-car joint venture with China’s BYD Auto Industry Co. following years of weak sales for the brand. BYD will own 90 per cent of the business and Daimler 10 per cent after an equity transfer the companies plan to complete in mid-2022, the Mercedes-Benz maker said Friday. The 50-50 joint venture was started in March 2012. “Daimler and BYD remain dedicated to their successful long-term partnership,” Daimler said in a statement. The Denza brand will introduce new models next year and “seek further growth opportunities.” Tepid demand for Denza…