China has opened an investigation into US chip giant Qualcomm, as Beijing intensifies its technology war with Washington amid heightened trade tensions. The US company was suspected of violating China’s anti-monopoly law in its acquisition of the Israeli vehicle semiconductor company Autotalks, the State Administration for Market Regulation (SAMR) said in a statement on Friday, without disclosing further details. Qualcomm announced in June that it had completed the acquisition of Autotalks,...