China is continuing on its path of restricting export access to certain metals.

As of August 01, 2023 germaniun and gallium have been added to the list. This is in addition
to restrictions on various rare earth metals which began as export quotas around 2010.
China controls around 90% of the supply of rare earth minerals as well as control of technologies surrounding the manufacture of products using these metals.

China has been enacting a policy of increasing restrictions on exporting these metals and technologies
causing western countries to scramble to put together their own supply chains. A large premium has been put upon getting production into place since these various metals are essential to western defense department This puts them in the category of national security resources. Not to mention the electric vehicle explosion requires these metals as well as many other technologies developed in recent years such as wind turbines, batteries, solar devices and so on.

Here is a link to an article about the latest restrictions of germanium and gallium written by the publication TheHill.com.
TheHill.com article