Shan said as overseas customers are paying increasing attention to suppliers' credit qualifications, her company has relied on its AEO certification to continuously expand its circle of foreign trade partners this year, securing new orders from Northeast Asian countries and maintaining steady growth in export business.

Multinational corporations are also expanding their footprint in China's northeastern region, adding further vitality to regional supply chains.

One such company is Eastman Chemical Co, a United States-based specialty materials manufacturer.

The company, with eight manufacturing sites and an innovation center across China, launched two new lines at its plant in Dalian in June to ramp up the output of its automotive film products.

"This expansion consolidates our ability to meet the rising demand for our film products across China and the Asia-Pacific region, while also fostering greater innovation and enabling the scaling of product development within our existing operations," said Brad Lich, executive vice-president and chief commercial officer of Eastman.