Reuters 2 minute read Eskom's chairman Jabu Mabuza looks on during the release of the company's 2018/19 interim results at its head office at Megawatt Park, in Sunninghill, South Africa, November 28, 2018. REUTERS/Siphiwe Sibeko JOHANNESBURG, June 16 (Reuters) - The former chairman of state-owned South African utility Eskom and widely admired businessman Jabu Mabuza has died from COVID-19 complications on Wednesday, his family announced. Mabuza, 63, resigned unexpectedly from Eskom in early 2020 after apologising for failing to meet a commitment to avoid power cuts during the holiday period. He had been appointed to lead the Eskom board shortly after President Cyril Ramaphosa won the African National Congress (ANC) party leadership in December 2017.