Earlier quoted context omitted.
because there is no proof of collusion. Absolutely no need for any further regulation.
https://en.wikipedia.org/wiki/DRAM_price_fixing They've pled guilty in the original DRAM price fixing collusion and they just got sued last year for the same charge, it's ongoing. I can only guess that laws are more lenient in Asia and they can only be charged in US after the fact. Edit: removed my opinion about getting sued again as that's off the topic.
Now you are making stuff up. We are in 2018, not 2006. There is no regulatory investigation by any gov't antitrust agency. China's NDRC announced that they had "massive evidence" of price fixing by Micron, Samsung and SK Hynix, in 2018. It turned out they had nothing, so instead they tried to blackmail Samsung and SK Hynix to drop all pending and future patent lawsuits against China's domestic companies in exchange for dropping a multibillion dollar fine and antitrust violation that they couldn't prove.
You clearly haven't read the class-action lawsuit by Hagens Berman in which the law firm alleges that the memory companies "coordinated" by signaling each other via PR. Do you understand why the class lawsuit is not going anywhere?