Grace is a Principal Engineer with a specialization in Energy with Group Technical Solutions, Petroliam Nasional Bhd (PETRONAS). Since joining PETRONAS 17 years ago, she has led multiple energy optimisation studies including Strategic Energy Optimization and Integration projects in the various PETRONAS refinery, gas and petrochemical facilities including the first multi-site energy optimisation study in 2020. She has also led CAPEX feasibility studies in particular for energy improvement and/or greenhouse gas reduction. She is an IChemE Chartered Engineer and is a member of the IChemE Oil Gas and Energy Transition SIG and ‘Energy and Resource Efficiency’ Project.