asrock hasn't been a subsidiary of ASUS for 20+ years, but its complicated because they're owned by Pegasus. Pegasus was created in a restructering of AsusTek, so its hard to say whether or not asus still owns them or not but at arms length. They're both companies that were spun off but the corporate structure is complicated.
and pegatron owns asrock, and asus is still the largest single shareholder in pegatron. so does asus own asrock? not entirely, not directly, but sort of.
