We revisit the host galaxy of GRB031203 using a set of spectra obtained with VLT .
Assuming a Galactic color excess E ( B - V ) = 0.72 ( mag ) in the direction of the burst , we derive an internal extinction of E ( B - V ) HG \approx 0.4 ( mag ) .
After correcting for reddening , we find an electronic density of 156 \pm 21 ( cm ^ { -3 } ) and a temperature of 12443 \pm 95 ( K ) .
With an ISM dominated by photo-ionization , we estimate a metallicity of 12 + Log [ O / H ] = 8.12 \pm 0.04 and a star formation rate ( SFR ) of 12.3 \pm 2.1 ( M _ { o } yr ^ { -1 } ) .
This galaxy does not host a clearly detectable population of WR stars .