Mr. Jarrett joined Cargill in 1976, working for their metal trading subsidiary, C. Tennant Sons and Co. in Belgium. From 1978 to 1983, he held various merchandising desk head positions in Minneapolis before moving to London to become Managing Director of Cargill Metals, overseeing all non-Americas trading.

In 1986, Mr. Jarrett returned to Minneapolis to join Cargill's Financial Markets Group where he managed international fixed income trading. In 1988, he became head of Cargill's Capital Markets trading activities, a position he held until 1995, when he became co-head of the newly merged Global Financial Trading business encompassing emerging and developed markets. In 1997, Mr. Jarrett became President of Cargill's Global Energy business overseeing oil, natural gas and electricity trading. In 1999, he was named President of Global Capital Markets, the forerunner to Black River.

Mr. Jarrett graduated from Oxford University in England in 1976 and has a Masters degree in Metallurgy and the Science of Materials.