The manuscript highlighting the technical challenges addressed within C123 “A Disruptive Innovation for Upgrading Methane to C3 Commodity Chemicals” can be accessed at https://doi.org/10.1595/205651321X16051060155762 , and the manuscript describing the market and viability potential of the C123 project “C123 – Methane oxidative conversion and hydroformylation to propylene” can be accessed at https://doi.org/10.1595/205651321X16051080751506 . Enjoy reading!