The Voice of CAST (VOC) is the official communication platform of the China Association for Science and Technology. The website of the service platform is https://voc-gj.cast.org.cn/, where public users can follow closely the updates of CAST and its national member societies and local branches nationwide, including the latest sci-tech events, introductions to journals, themed conferences on facilitating international sci-tech-driven development, academic exchanges, and science popularization projects.