China–Kazakhstan border in the context of "Kazakhstan"

The People's Republic of China (PRC) shares land borders with 14 countries (tied with Russia for the most in the world): North Korea, Russia, Mongolia, Kazakhstan, Kyrgyzstan, Tajikistan, Afghanistan, Pakistan, India, Nepal, Bhutan, Myanmar, Laos, and Vietnam, and with two Special administrative regions of China, Hong Kong and Macao. The land borders, counterclockwise from northeast to southwest, are the China–North Korea border, the eastern segment of the China–Russia border, the China–Mongolia border, the western segment of the China–Russia border, the China–Kazakhstan border, the China–Kyrgyzstan border, the China–Tajikistan border, the China–Afghanistan border, the China–Pakistan border, the western segment of the China–India border (the most contested of the Sino-Indian border dispute), the China–Nepal border, the central segment of the China–India border (Sikkim), the China–Bhutan border, the eastern segment of the China–India border, the China–Myanmar border, the China–Laos border, the China–Vietnam border, a 3-kilometre (1.9 mi) internal border with Macau, a Portuguese territory until 1999, and a 30-kilometre (19 mi) internal border with the special administrative region of Hong Kong, which was a British dependency before 1997.

To the west, China has maritime borders with North Korea, Japan and contested limits with Taiwan and other countries in the South China Sea, among other territorial disputes.

Aksu Prefecture is located in west-central Xinjiang, China. It has an area of 131,161 km (50,642 sq mi) and 2.714 million inhabitants at the 2020 census whom 715,319 lived in the built-up (or metro) area made up of Aksu urban district. The name Aksu is Turkic for 'white water'. Aksu Prefecture has a 263.8 km (163.9 mi) long international boundary with Kyrgyzstan and Kazakhstan.

The Emin Valley (Chinese: 额敏谷地; pinyin: Émǐn gǔdì) is located on the China–Kazakhstan border, in Central Asia. It has an area of about 65,000 square kilometres (25,000 sq mi). Its main waterway is the Emil River.

Administratively, the Emin Valley occupies areas of Tacheng Prefecture in the Xinjiang Region of north-western China and East Kazakhstan Province of eastern Kazakhstan.