I dont remember the exact year, but I purchased my first ZIC 10w-20 from newly opened Hyperstar Fotress Lahore.
It was imported and the price was so attractive that i bought complete box.
Secondly, these cars are designed around 0w-20 synthetics oil, so it dost matter if you are in Japan or Africa.
Japan has recently switched to newer 0w-16 oil.
Pls try to understand that Hybrid and Eco Idle engines have to start repeatedly, in order to ensure that oil reaches the critical parts always such thin oils are recommended.
Moreover as they have very low viscosity they provide very low resistance to engine hence more economical .