China and North Korea are set to hold an opening ceremony for a long-stalled four-lane road bridge linking their territories over the Yalu river, Chinese state media report.
The two sides will hold an official opening ceremony on Thursday, the reports said, in another sign of improving relations.
The project had been delayed for more than a decade.
Chinese foreign ministry spokeswoman Mao Ning said in Beijing that the bridge would promote economic and trade exchanges, while North Korean state media did not initially report on the opening.
China is the most important trading partner of North Korea, a country subject to United Nations sanctions over its nuclear weapons program.
Experts say the new bridge could help increase trade.
Prospects for large-scale industrial investment remain limited because of the UN sanctions, according to an analysis published in late August by South Korea's Institute for National Security Strategy.
The new bridge stretches approximately 3km across the Yalu river, connecting Dandong in northeastern China with Sinuiju in North Korea.
The two cities are already linked by the ageing, single-lane Chinese-Korean Friendship Bridge.
The new bridge was originally scheduled to open in 2014 but North Korea failed to complete the buildings needed for customs clearance and border controls.
The reasons for the delay have not been disclosed.
Possible explanations include disputes between the two governments as well as North Korea's closure of its borders during the COVID-19 pandemic.
Relations between the two have recently improved noticeably.
North Korean leader Kim Jong-un visited Beijing in September 2025 on one of his rare trips abroad.
Chinese President and Communist Party leader Xi Jinping made a return visit to Pyongyang in June this year.
The Yalu River bridge is entering service roughly one month after the opening of the first road bridge connecting Russia and North Korea across the Tumen river.