Dust mass as a function of the stellar mass of our extreme starburst galaxies, colour-coded by redshift. Our galaxies agree with the M_dust–M_stars relation derived by Magnelli et al. (2020) as shown by the solid black line, but are well below the relations of Liu et al. (2019) and Kokorev et al. (2021) shown by the dotted and dashed black lines, respectively. The grey shaded zone defines the SN dust production as predicted by Gall & Hjorth (2019), which is barely sufficient to reproduce M_dust of most of our galaxies. The thick dashed-dotted green line defines the start of the AGB star contribution to the dust production (Witstok et al. 2023).