Mohamed M. Al Naggar is a chemical engineer, He received his PhD in chemical engineering in 2017 from Cairo University; the PhD thesis is “Production of Biodiesel from Locally Available Spent Vegetable Oils”. He received his degree of Master in chemical engineering in 2008 from Cairo University. The Master thesis is: “Comparison of Emissions from Gasoline and Natural Gas Converted Cars”. In 2003 he joined Natural gas vehicles company “Car gas” as a conversion Engineer and recently he served as Material Control and Warehouse assistant General Manager. He is one of the Middle Management Program (Wave II) – Foundation of Leaders Development Program (FLDP) – Ministry of Petroleum and Mineral Resources (2022). and he selected with 10 candidates to be trained at British Petroleum Company for 6 months. He is one of the “HCNG as a vehicles fuel” project team. He presented the HCNG project in EGYPS Conference 2023 and also with panel of Ministry of petroleum. He presented at EGYPS 2020 Technical Conference, 2020: Financial Model of the traditional method and the ultrasonic method in Biodiesel Production from Waste Cooking Oil in Egypt. Designated reviewer in the Journal of fuel (JFUE). Designated reviewer in the Journal of Petroleum and Mining Engineering (JPME). Designated reviewer in the Egyptian Journal of Chemistry (EJCHEM)