The sway which the Unlimited holds over each of them is considered as the other nine Sefirot (e.g. Chessed of Chessed, Gevurah of Chessed, etc. and so too in the case of every Sefirah, with the exception of the Malchut of each one). From their point of view they are not divided, for the Unlimited holds sway over every part of the pathway of limitation and boundaries, bringing it back beyond limitation.
Inasmuch as the Unlimited holds sway over these nine Sefirot, bringing them back beyond limitation, they are spoken of as the nine Sefirot of Eyn Sof, but not on account of what they are in themselves. However, the Sefirot after the Tzimtzum are all parts of Malchut: after the Tzimtzum, we refer to the nine Sefirot only from the aspect of their Malchut, and accordingly they are all limited. The Malchut of each of the individual Sefirot is the pathway of limitation and boundaries that was subsumed in Eyn Sof as a hypothetical possibility prior to the Tzimtzum, while the upper nine Sefirot of each individual Sefirah indicate the Unlimited, Who holds sway over the pathway of limitation.
They are not the Unlimited in Himself, but give enough indication of Him as is necessary for the sake of the government, as will be explained in the appropriate place.