The wide range of bonding found in inorganic molecules presents a significant challenge for BEBOP and SQM methods. The species were selected to survey the possible bonding combinations. They include many species that have not been observed experimentally, but the consistent accuracy of the ROCBS-QB3 energies for the experimentally known species gives us confidence in these reference energies for the remainder. This test set includes a larger fraction of small molecules than the previous two sets, giving a deceptively small RMSE and MAD errors for BEBOP.