On 8 January, OFAC announced that Taban Deng GAI, a Sudanese national, had been added to its sanctions lists. OFAC says he is listed for his involvement in serious human rights abuse, including the disappearance and deaths of civilians.
https://home.treasury.gov/news/press-releases/sm869
https://www.treasury.gov/resource-center/sanctions/OFAC-Enforcement/Pages/20200108.aspx