The ceremony was attended by Kazakh Energy&Mineral Resources Minister Sauat Mynbayev.
The pipeline is due to become the first part of the large pipeline project, linking Turkmenistan, Uzbekistan and Kazakhstan with the economically expanding north-west part of China.
The Kazakh section of the pipeline will consist of two pipes stretching over 1300 kilometres.
The pipeline will start from the border between Kazakh-stan and Uzbekistan and will then go through the village of Kereit, then to Almaty and finally to the town of Khorgos on the Kazakh-Chinese border.
According