2011 July: Establishment of Diplomatic Relations between Japan and South Sudan 

2013 May: Japan-South Sudan Summit Meeting 

2016 August: Japan-South Sudan Foreign Ministers’ Meeting 

2016 December: Japan-South Sudan Telephone Talk 

2017 August: Japan-South Sudan Foreign Ministers’ Meeting 

2018 February: Foreign Minister of Japan, Kono paid a Courtesy Call on the First Vice President of South Sudan 

2018 October: Japan-South Sudan Foreign Ministers’ Meeting 

2019 May: Foreign Minister of Japan, Kono visited South Sudan and Ethiopia 

2019 August: Prime Minister of Japan, Abe Received a Courtesy Call from James Wani Igga, Vice-President of the Republic of South Sudan

2021 July: Courtesy Call on Prime Minister of Japan, SUGA Yoshihide by Rebecca Nyandeng de Mabior, Vice-President of the Republic of South Sudan 

2022 August: Video Teleconference meeting between Prime Minister of Japan, Fumio Kishida and Vice President of South Sudan