She was chosen by the SPLM as the speaker of the Revitalised Transitional National Legislative Assembly (R-TNLA).
[5] In 1991, Comrade Jemma left Khartoum and effectively joined her husband in Kidepo Valley, one of the SPLM/A liberated areas by then.
[5] When her husband was appointed Sudan People's Liberation Movement (SPLM) representative to Namibia, Kumba moved with him.
Jemma Nunu was reappointed the Minister for Housing and Physical Planning in the Cabinet of South Sudan.
[12] In October 2015, President Kiir Mayardit, appointed Kumba to serve as deputy secretary general of SPLM.
[14] Commrade Jemma Nunu Kumba was appointed Minister of Gender, Child and Social Welfare in 2018.
She is married to Festo Kumba, the former minister of Animal Resources and Fisheries and belongs to Zande people.