China signaled it would approve the export of rare earth minerals in a statement Friday hours after White House officials said that the US and China had signed a trade agreement to work out tensions linked to US access to the key material.

The U.S. and China have agreed on the framework for a trade deal, both nations say. It appears that rare earth minerals are one key part of it.

A deal could end months of uncertainty about tariffs on China, but questions still remain. Here's what it means for business owners.