[Update - 12/26/2025] - Taiwanese outlet, CNA, has received a statement from ASUS regarding the DRAM rumor and stated that it currently has no plans to invest in a memory wafer fab.
https://wccftech.com/asus-enter-dram-market-next-year-to-tackle-memory-shortages-rumor/
Sometimes, business is business. Samsung sells displays to Apple, and recently, Samsung refused a RAM order from Samsung Electronics