Trueman has set himself apart as a leader in South African engineering, not only excelling as a first-rate engineer, but also unlocking the field for those less fortunate by serving as their mentor and role model. Hatch Africa, of which he is the Chairman, is one of the largest consultants in renewable energy and the power sector in the country, with clients such as Eskom, IPPs and local governments. He sat on the board of the PIC for ~10 years, who are one of the largest investors in renewables and power infrastructure in this country, giving him tremendous experience in this area. Holding the degree MEng (Civil Engineering) from Cornell University, he is adept in various disciplines such as transportation, fluid mechanics, geotechnical and structural engineering.