It is a part of the 2,070 km (1,290 mi)-long Lanzhou-Zhengzhou-Changsha pipeline with a capacity of transporting 15 million tons of oil per year.

[3] According to China National Petroleum Corporation (CNPC), the rupture took place on December 30, 2009 due to an accident near Weinan where construction was underway by third-party workers.

According to Pacific Environment China's co-director Wen Bo, 700 workers were quickly mobilized by the government to control the spill as soon as its occurrence became known.

[6] Despite these efforts, officials found traces of diesel in the Yellow River on January 4, 2010, 200 km upstream of Zhengzhou.

[8] On 5 January, Zhang Xun, an official of the Ministry of Environmental Protection confirmed that the spill had been contained in the Sanmenxia reservoir and was no longer a threat to the river water downstream.