Isn’t that the point?
Everyone knows the commodity market (outside HBM) is going to be margin crushed within a few years… by CXMT, demand swings, and so on.
So nobody cares to fully meet the demand today. They are perfectly happy telling customers (those not willing to sign a 10 year contract paying up front at least) to go pound sand.
They don’t even need an OPEC like arrangement. They are effectively perfectly coordinated already in dismissing customers.
Yes, there are a bunch of bizarre comments in here. "Why aren't they rushing to make more fabs? Don't they know China is using this moment to the enter the market in a big way?" Yes, they do! And building more fabs would make that worse. The last thing you want to do before a state-backed player enters the market in a boom cycle is load up on debt to produce more capacity just before the bust.