The Kokshaal segment (KS) of South Tien-Shan was formed during Late Paleozoic collision of Kazakh and Tarim paleocontinents. Granitoid magmatism of the KS differs markedly from that of westernmost Kizilkum and Alay segments, where calc-alkaline suites prevail. In the KS syncollisional I and S granitoids with K-Ar ages about 320 Ma occur as large fragments within Atbashi-Inilchek suture zone. To the south of the suture line about 25 intrusions of clearly postorogenic tectonic setting are situated. Geochemically all rock types exhibit characteristics of A-type granites. They are meta- to peraluminous with high SiO₂, K/K + Na, Fe/Fe + Mg, Rb, F, U, Th, Nb, Y contents. The Middle(?) Carboniferous-Upper Permian granitoid association of the KS shows marked similarities with the rapakivi magmatism of the Baltic shield. Post orogenic setting, coeval alkaline and gabbroic magmatism, well pronounced A-type characteristics and prolonged formation time (50 Ma) presume extension-related origin and affinity with A-granites of intraplate activation zones.