The 1201-type nominal (Hg0.9 Re0.1)Sr2CuO4+δ samples, synthesized at ∼ 920°C in partial vacuum, show, from temperature dependent dc-magnetization, Tconset ∼ 54 K. The CuK-edge features obtained from X-ray absorption measurements on the sample show predominantly Cu2+ state and a weak but distinct Cu1+ signature due to superconducting 1201 phase (after taking due account of impurity Sr2CuO3, and SrCuO2 phases). The presence of Cu1+ signature in SC samples is consistent with our earlier observations of Cu1+ in Ba-free superconducting (Hg,Cr)-1201 and (Hg,Mo)-1201 materials.