This day, 4 July, in 1998, the China-Kazakhstan border became the first undisputed border between China and the Commonwealth of Independent States, as Chinese President Jiang Zemin paid a working visit to the Republic of Kazakhstan, where he and President Nursultan Nazarbayev jointly signed the Second Supplementary Agreement on the China-Kazakhstan Border.
1998年7月4日的这一天，中哈边境成为中国与独立国家联合体之间第一个无可争议的边界，中国国家主席江泽民对哈萨克斯坦共和国进行了工作访问，在那里他与努尔苏丹·纳扎尔巴耶夫总统共同签署了《关于中哈边境的第二次补充协定》。
