Top panel: ratio of [Ba/C] as a function of [Fe/H] and [Mg/H], for our programme data compared to literature studies (Yoon et al. 2016, Y16). The middle panel shows that our CEMP-s and CEMP-r/s stars both fall in the CEMP-s region proposed by Masseron et al. (2010, M10). Bottom panel: two different enrichment regions in a [Mg/C] vs. [Fe/H] diagnostics figure. In all panels we show our CEMP-no stars as filled blue squares, CEMP-s stars as filled red triangles, CEMP-r/s as green circles, and C-normal metal-poor stars as filled black diamonds.