1967, the EACSO was superseded by the EAC. This body aimed to strengthen the ties between the members through a common market, a common customs tariff, and a range of public services to achieve balanced economic growth within the region. In 1977, the EAC collapsed. The causes of the collapse included demands by Kenya for more seats than Uganda and Tanzania in decision-making organs, disagreements with Ugandan dictator Idi Amin who demanded that Tanzania as a member state of the EAC should not harbour forces fighting to topple the government of another member state, and the disparate economic systems of socialism in Tanzania and capitalism in Kenya. The three member states lost over sixty years of co-operation and the benefits of economies of scale, although some Kenyan government officials celebrated the collapse with champagne. Presidents Daniel arap Moi of Kenya, Ali Hassan Mwinyi of Tanzania, and Yoweri Kaguta Museveni of Uganda signed the Treaty for East African Co-operation in Kampala on 1993 and established a Tri-partite Commission for Co-operation. A process of re-integration was embarked on involving tripartite programmes of co-operation in political, economic, social and cultural fields, research and technology, defence, security, and legal and judicial affairs. The EAC was revived on 30 November 1999, when the treaty for its re-establishment was signed. It came into force on 7 July 2000, 23 years after the collapse of the previous community and its organs. A customs union was signed in March 2004, which commenced on 1 January 2005. Kenya, the region's largest exporter, continued to pay duties on goods entering the other four countries on a declining scale until 2010. A common system of tariffs will apply to goods imported from third-party countries. On 30 November 2016 it was declared that the immediate aim would be confederation rather than federation. South Sudan accession The presidents of Kenya and Rwanda invited the Autonomous Government of Southern Sudan to apply for membership upon the independence of South Sudan in 2011, and South Sudan was reportedly an applicant country as of mid-July 2011. Analysts suggested that South Sudan's early efforts to integrate infrastructure, including rail links and oil pipelines, with systems in Kenya and Uganda indicated intention on the part of Juba to pivot away from dependence on Sudan and toward the EAC. Reuters considers South Sudan the likeliest candidate for EAC expansion in the short term, and an article in Tanzanian daily