Of the major chemicals, propylene production is the fourth largest source of greenhouse gas emissions worldwide. Finding alternatives to current energy-intensive production processes of chemicals is essential to meet the European environmental targets. The aim of the EU-funded C123 project is to produce propylene and its precursors from methane sourced from stranded gas or biogas. The synthesis steps will include the oxidative conversion of methane, followed by hydroformylation and then an eventual dehydration to yield propylene. This route will lower the carbon footprint of the process and use a feedstock that would otherwise be wasted.