DHHI has always been focusing on technological innovation, actively responding to the national"The Belt and Road" initiative, relying on its century-old industrial foundation, and taking advantage of its port to fully implement the international business development strategy of "going out".

DHHI has 6 oversea companies which are located respectively in Germany, India, Australia, Malaysia, Hong Kong, and Vietnam, and has developed long-term strategic cooperation with 83 foreign companies. The products have been exported to 93 countries and regions, including Australia, India, Brazil, Japan, Argentina, South Korea, Mexico, Turkey, the United States, Germany, etc. , with an annual foreign exchange earnings of more than US$400 millions.