Vucic recently visited Washington to sign an agreement with the U.S. vowing not to use 5G equipment from "suspicious sources." This came just weeks after the U.S. banned Chinese telecommunications giant Huawei, claiming it could compromise national security.
Vucic said: "We already had various pressures and we know it is not easy to maintain a friendship with China. But so far, Serbia [has been] successful in maintaining it. We'll keep our freedom of choices, and we'll continue to build a sincere friendship with the People's Republic of China."