From the General Botha Old Boys Association Muster List

    1961–1963: Cadet with Clan Line

    1963–1966: Served as Third and Second Officer with Sugar Line Ltd.

    1966–1968: Second Officer with Safmarine

    1968–1969: Chief Officer with Marine Diamond Corporation

    1969–1970: Master with SAB Lines

    1970–1971: Chief Officer with South African Harbours (tugs)

    1971–1975: Managing Director, Ship Delivery Ltd.

Subsequently accumulated 18 years of oilfield experience, including:

    8 years on jack-up rigs, serving as Master, Barge Engineer, Jackman, Rig     Mover, and Towmaster

    10 years on semi-submersibles and derrick barges in roles such as      Master, Barge Engineer, Towmaster, Rig Mover, and Offshore Installation      Manager (OIM)

As of 1994: Serving as Master / OIM / Person in Charge aboard Nan Hai 6..