Global management team
Nicolas Konialidis
CEO
CEO of Impala Terminals since 2013 and CEO of the joint venture with IFM Investors since 2018. Over 30 years in the commodity trading industry in finance, risk and supply chain management and logistics roles. Prior to Impala Terminals, Nicolas held various positions in Trafigura and BP.
Guillaume de Contenson
Chief Financial Officer
Guillaume joined Impala Terminals in 2013 as CFO, following 21 years working in finance at Schlumberger (Measurement division) and its legal successors. Guillaume has a broad range of finance experience including managing IT projects, treasury, tax and as a division controller.
Stylianos Tzaferis
Chief Operations Officer
Experience 22 years - Appointed since January 2024. Joined Trafigura in 2006, with various regional roles in Construction and Operations in Africa, Middle East and Asia Pacific. Previously, he worked in Construction and Oil Refining industries in Europe. Stylianos has leadership oversight and responsibility for all operational systems, standards and processes, including Health, Safety, Environment and Community (HSEC) and asset integrity.
Margarita Restrepo
Head of Human Resources
Margarita joined the Trafigura Group in 2012 and spent 8 years as HR Business Partner in Colombia, before being appointed Global Head of HR at Impala Terminals in April 2021 and relocating to Geneva, Switzerland. Prior to that she worked as Human Resources Manager for Kimberly Clark in Colombia.
Fateme Weyeneth
General Counsel
Joined Impala as General Counsel in May 2023. Fateme is responsible for Legal, Compliance and Governance matters. She has over 15 years of experience in the energy and commodities sectors. Prior to joining Impala, she was Legal & Compliance Manager of Oryx Energies Group and before that, Eferton Group.
Duncan Armstrong-Prior
Chief Technical Officer & ESG Manager
Experience 28 years - Joined Impala in 2024 with a broad experience including technical Chemical Engineering roles and Trading roles in various energy and construction companies. Duncan was a member of the Exec Committee and Global head of Storage for Puma Energy prior to 2016. He has also worked for Zenith Energy. He gained an MBA in Sustainability Management in 2020.
Alexander Isaacs
Chief Commercial Officer
Experience 14 years - Appointed since January 2024. Joined the Impala Terminals joint venture in 2018. Previously held role of global business development manager at Impala Terminals and various commercial roles at Trafigura.
Olivier Fevry
Chief Information Officer
Olivier was appointed CIO in August 2022, bringing more than 20 years of IT experience, in particular in the energy and commodities sectors including senior roles at Oryx Energies and Louis Dreyfus Commodities. Olivier also worked for Trafigura from 2013 to 2018 as CIO for Impala and DT and as a Director of Impala Holding.
Alison Flynn