2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76292We classify centerless Lie G-tori of type C_r including the most difficult case r=2 by applying techniques due to Seligman. In particular, we show that the coordinate algebra of a Lie G-torus of type C_2 is either an associative G-torus with involution or a Clifford G-torus. Our results generalize the classification of the core of the extended affine Lie algebras of type C_r by Allison and Gao.Rings and AlgebrasPrimary 17A70, Secondary 17A36text