The cooperation hub includes both brick-and-mortar and online businesses. Currently, 24 enterprises from both countries have headquarters, branches or offices in the hub.

As part of the hub, the China-Japan (Qingdao) cooperation demonstration zone for regional development was one focus of the seminar.

The zone, approved by the National Development and Reform Commission in April, is the only national-level demonstration zone focused on energy savings and environmental protection between China and Japan.

Infrastructure construction in the zone is expected to be finished in 2025 and aims to attract more than 200 enterprises capable of producing more than 35 billion yuan ($5.2 billion) of total industrial output and 10 billion yuan of regional GDP.

The Thursday seminar was part of this year's China-Japan Comprehensive Forum on Energy Saving and Environmental Protection. The forum, first held in 2006, has seen substantial results in economic and trade cooperation between the two countries.