Unitree Robotics, a luminary in China’s humanoid robot boom, has reported a sharp plunge in first-quarter profits just days before its crucial listing hearing, casting a shadow over its Star Market initial public offering (IPO) as soaring expenses and a brutal price war catch up to the industry’s hype. The Shanghai Stock Exchange’s listing committee is scheduled to review Unitree’s IPO application on June 1, according to an exchange notice on Monday. The company, based in Hangzhou, the capital...