China science, technology news summary -- May 26 Xinhua 26 May 2021, 14:05 GMT+10 BEIJING, May 26 (Xinhua) -- The following is a summary of published science and technology news of China. HARMONYOS SYSTEM Chinese telecom giant Huawei will officially launch its new operating system HarmonyOS for smartphones on June 2, the company said Tuesday. HarmonyOS, or Hongmeng in Chinese, is an open-source operating system designed for various devices and scenarios. It was first launched on Internet-of-Things devices including wearables and tablets in August 2019. Huawei expects the number of devices equipped with HarmonyOS to reach 300 million by the end of 2021, including more than 200 million for Huawei devices.