In this article, we review our recent studies on new rare-earth intermetallic compounds including the Ga, Si substituted 2:17-type compounds, their nitrides and carbides, and the Sm 3 (Fe,Ti) 2 9 N 5 compounds. Much of our recent work has been focused predominantly in the Sm 2 (Fe,Ga) 1 7 C x alloys, where we used melt-spinning and subsequent annealing to obtain a high coercivity. The highest coercivity obtained so far was in Sm 2 Fe 1 4 Ga 3 C 2 . 5 with a value of 12.8 kOe at room temperature. The off-stoichiometric Sm 2 Fe 1 4 - x Co x Si 2 N y nitrides maintain the Th 2 Zn 1 7 -type structure but with a unit-cell expansion ΔV/V up to 5% compared to the host materials. The Sm 2 Fe 1 4 - x Co x Si 2 C x carbides maintain the Th 2 Zn 1 7 -type structure when z = 1 and transform to BaCd 1 1 -type structure when z = 2. A very large anisotropy field with H a value of 227 kOe for Sm 2 Fe 1 4 Si 2 N 2 . 6 and 276 kOe for Sm 2 Fe 1 0 Co 4 Si 2 N 2 . 3 is observed at low temperature (1.5 K). The Sm 3 (Fe,Ti) 2 9 N 5 compound and its nitrides show very interesting magnetic properties. Both of these compounds exhibit ferromagnetic ordering with T c of 486 and 750 K, respectively. The room-temperature saturation magnetization is 119 e.m.u. g - 1 for the parent compounds and 145 e.m.u. g - 1 for the nitrides. The easy-magnetization direction changes from planar to uniaxial upon nitrogenation. The anisotropy field for the nitrides is 12 T at room temperature and 25 T at 4.2 K.