John McNally was born in the UK but was raised and educated in the USA. He has a Bachelor’s Degree in Chemistry from the California Institute of Technology in 1982 and a PhD in Chemistry from Harvard University in 1987.  

He has worked in the petrochemical industry for 27 years, first for BP and then INEOS, in a variety of Technical, Operational and Commercial Management roles in 5 countries. 

His most recent previous role was as Chief Operating Officer for INEOS Bio based in Florida, USA. He was appointed Chief Executive Officer for INEOS Olefins and Polymers, UK in August 2014. In the past four years, he has overseen over £500m of investment in the Grangemouth petrochemicals complex.

John is married and has two sons in university.  He currently resides with his wife in London near the INEOS UK Headquarters, but splits his time between the London and Grangemouth offices.