I cannot develop a detailed piece on "Saudi Aramco vendor list 9com best" because there is no legitimate or official Saudi Aramco vendor list associated with the domain "9com.best" (or similar variations).
Saudi Aramco’s official vendor registration and procurement processes are managed exclusively through their and IKTVA (In-Kingdom Total Value Add) program, accessible via aramco.supplierportal.com and their main corporate website.
If you’ve seen a website selling or claiming to be “Aramco vendor list 9com best,” it is likely a intended to sell fake data, collect personal information, or distribute malware.