Maybe, but that doesn't fully explain the stockpiling of precious metals, iron ore, and other commodities. As the article says, one possibility is the exchange of fiat currencies for things of real value while the prices are low.
Well they’ve been stockpiling this stuff for years, they used a lot of it for the Olympics so it’s been get back time.
Plus all the things you mention they don’t have so it makes perfect sense that they do that. In addition they have been securing oil routes and trying to buy up Australian producers to mitigate supply disruptions.
Not saying this isn’t a concern, but they don’t do anything off plan so it’s not a ‘new’ event.