The uranium-gold diantimonide UAuSb2 belongs to a numerous family of ternary compounds crystallizing in a tetragonal structure of the HfCuSi2-type (space group P 4/nmm). In this paper the results of magnetization, electrical resistivity and thermopower measured along the main crystallographic directions are reported. Two magnetic transitions, a ferromagnetic one at TC = 31 K and probably an antiferromagnetic one at TN = 43 K were found. The spontaneous magnetization at 1.9 K amounts about 0.8

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... for B c-axis. Electrical resistivity for j ⊥ c-axis exhibits a T 2 exp(−∆/kT ) dependence at low temperatures and a Kondo effect at higher temperatures above TN. The thermopower S for both main crystallographic directions shows a maximum at the temperature close to TC and the lack of any anomaly at TN.