Career in brief
Second-generation oil. A supply-chain operator from Manchester and Salford, sharpened at CITAC London, with direct floor experience of jet fuels, crude oils, diesels, and gasolines.
Mr. Mahamar Tanoe Vonan is a second-generation oil expert. Prepared from a young age for the industrial life, he read Supply Chain Logistics and International Trade at the University of Manchester Business School, followed by postgraduate study at the University of Salford. The technical and contractual mechanics of moving physical commodities — chartering, incoterms, customs, demurrage, trade finance — formed the academic foundation, built on the family operating record that preceded the training.
Supply Chain Market Analyst at CITAC London, the specialist consulting authority on the African downstream petroleum market. The CITAC years furnished a critical analytical insight into the consultancy aspects of the downstream energy market with a focus on the African continent — supply-demand modelling across West African product flows; commercial intelligence briefings for traders, oil majors, and West African governments. The analytical layer that informs every measurement decision now made on the operational floor.
Then Inventory Manager at PCMS Accra — direct operational responsibility for petroleum inventory across the full product slate: jet fuels, crude oils, naphtha, diesels, and gasolines. Specialisation across the industrial inventory disciplines that govern physical petroleum stock — storage density, weight, and water-level capacity — held against ullage measurements and tank-calibration records on a daily cycle. The standard carried into the operating floor of Casti Energies & Services GH Ltd.
On conclusion at PCMS, Mr. Mahamar entered his own entrepreneurial chapter, working across several high-industry-level Oil & Gas trade transactions globally, and founded Tanoe Vonan Enterprises in 2023 as the principal vehicle. Today he serves as Chairman & Chief Executive Officer of Casti Capital Ltd, the Group’s Financial & Petroleum Advisers registered in Manchester under English law, and concurrently as Vice-Chairman & Chief Operating Officer of Casti Energies & Services GH Ltd — holding the operational floor of the Trading House: the measurement discipline, the inventory record, and the depot relationships through which the House lifts and stores.