China–Pakistan border

The length of the border between Pakistan and China is 523 kilometers

Pakistan ties with China Karakoram Highway, passing through the disputed territory of Gilgit-Baltistan. This highway is the dry port of Sust. This city occupies a strategic position, traversed by all passenger and freight traffic through the Pakistani-Chinese border. In Soest acts lightweight custom scheme, so Chinese products are clearance here and then are delivered by List of cities in Pakistan. After opening the dry port and customs in Soest, the annual trade turnover between China and Pakistan has increased from less than US$2 billion in 2002 to US$6.9 billion, with a view to reach a turnover of US$15 billion by 2014.

Khunjerab Pass is the only modern day border crossing between China and Pakistan. Historically, Mintaka Pass and Kilik Pass have also been used. However those crossings do not have vehicle access and are closed.

...
Wikipedia