In this July 24, 2019, photo, workers watch as a truck passes by stacks of shipping containers at a port in Yingkou in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)

YINGKOU, China (AP) — From Thailand to Kenya, trains run on tracks from steel mills in China's northeast, a rust-belt region that is trying to capitalize on a multibillion-dollar national initiative to build ports, railways and other projects abroad.

Announced in 2012, the Belt and Road Initiative is helping to boost demand from developing countries at a time when China's economy is slowing and exporters face U.S. tariff hikes in a war over trade and technology.

It calls for building railways, power plants and other infrastructure across an arc of more than 60 countries from the South Pacific through Asia to Europe and Africa. Estimates of the total cost of planned projects run as high as $6 trillion, though it's unclear if all will be built.

In this July 24, 2019, photo, a cargo ship is docked a port in Yingkou in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)
In this July 25, 2019, photo, a crane lifts a shipping container from a truck next to a cargo train bound for Europe at a train station in Dalian in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)
In this July 23, 2019, photo, olefin production facilities are seen inside the Fushun Petrochemical Company in Fushun in northeastnern China's Liaoning Province. China’s northeastern rust-belt region is trying to capitalize on a multibillion-dollar national initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)
In this July 23, 2019, photo, a man takes photos with his cellphone of a Siasun greeting robot in a demonstration hall of Siasun Robot and Automation in Shenyang in northeastern China's Liaoning Province. From Thailand to Kenya, trains run on tracks from steel mills in China’s northeast, a rust-belt region that is trying to capitalize on a multibillion-dollar national initiative to build ports, railways and other projects abroad. Announced in 2012, the Belt and Road Initiative is helping to boost demand from developing countries at a time when the domestic economy is slowing and exporters face U.S. tariff hikes in a war over trade and technology.(AP Photo/Olivia Zhang)
In this July 23, 2019, photo, a computer screen in the control room of the Fushun Petrochemical Company shows surveillance video from olefin production facilities in Fushun in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)
In this July 23, 2019, photo, olefin production facilities are seen inside the Fushun Petrochemical Company in Fushun in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)
In this July 24, 2019, photo, workers wipe and clean a crankshaft in a facility for Dalian Huarui Heavy Industry in Dalian in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)
In this July 24, 2019, photo, red-hot steel rolls along a conveyor inside a mill of Ansteel's Bayuquan Production Base in Yingkou in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)
In this July 25, 2019, photo, a worker walks past a cargo train bound for Europe at a train station in Dalian in northeastern China's Liaoning Province. Authorities in China's rust-belt region are looking for support for its revival from Beijing's multibillion-dollar initiative to build ports, railways and other projects abroad. (AP Photo/Olivia Zhang)