Private equity fund Energy & Minerals Group is signing on to sponsor a US Gulf Coast ethane export project, according to the project's original backers.

Houston-based American Ethane says EMG signed an "exclusive supply and co-development agreement" for American Ethane's proposed ethane export terminal, which would be able to export up to 10 million tonnes per year of ethane.

The project, which was highlighted on a US-China trade mission last November, would call for up to eight very large ethane carriers (VLECs) or potentially more to ship ethane to China.