Did Shang Dynasty implement the enfeoffment system?

Shang dynasty also implemented the system of enfeoffment. Isn't Zhou Wenwang a enfeoffment country of Shang Dynasty?

The Western Zhou Dynasty generally divided the Shang Dynasty into an administrative system, and the enfeoffment system was also called enfeoffment system or feudal system. The feudal system in the Zhou Dynasty was a social system in which the Zhou royal family divided the territory into vassals. Under the feudal system, the state land was not entirely owned by the Zhou royal family, but by the vassals who obtained the fiefs. They have all the resources and benefits of the enclosure, and they can fulfill their obligations by paying a certain tribute to the Zhou royal family.