Unitree Robotics, the country’s top humanoid robot maker, said it would file documents to an onshore stock exchange in mainland China between October and December this year, suggesting it will soon go public. While the Hangzhou-based firm’s statement did not specify whether it was seeking a listing in Shanghai, Beijing or Shenzhen, a source familiar with the matter said that the company was eyeing an onshore initial public offering (IPO) as the first step. “At present, the company is actively...