He served as the general secretary of the Burkinabé Trade Union Confederation (CSB) for many years and was a prominent leader of the Patriotic League for Development (LIPAD) mass movement.

[1][6] He took part in the organization of the General Union of Voltan Students [fr] (UGEV) congress in Ouagadougou in 1971, at which he served as a rapporteur.

[2][7] On a number of occasions he was offered the post as director-general of SONAR, but Touré declined to remain active in trade union leadership.

[4] Touré emerged as a prominent mass movement leader, and was noted for being a powerful orator at rallies and meetings.

[2] He served as the general secretary of the Trade Union Federation of Banks, Insurance, Commerce and Industry (FESBACI).

[16] After the 7 November 1982, coup, the Popular Salvation Council (CSP) military junta released Touré from jail and legalized the CSV.

[20] In May 1984, as relations between LIPAD and the governing National Revolutionary Council (CNR) junta broke down, Touré was dismissed from public service.

[11][17] On 10 January 1985, a Popular Revolutionary Tribunal cleared him of charges of being involved in a 298 million-CFA franc national social security fraud scheme.

[13] However, he was immediately sent back to jail on a defamation charge brought against him by the CNR, regarding statements made by him during his trial where he had accused the incumbent military junta of embezzling "billions" of CFA francs as compared with the "millions" stolen by previous governments.

[2] Touré was again arrested in September 1989, after the CSB had protested against Popular Front interference in the trade union movement.

[7] The elected PAI deputies sat in the parliamentary group of the Convention of Republican Forces, which was dominated by the governing Congress for Democracy and Progress (CDP).

[3][23][31][30] Paying condolences, President Roch Marc Christian Kaboré stated that Touré was "a patriot whose commitment and union and political struggle were in the service of his country and the Burkinabè people".

[32] The Prime Minister Christophe Joseph Marie Dabiré stated that "[a] library of our country's political history has been closed forever! ...

Mr. Soumane Touré was a great fighter who was fully involved in politics and trade unionism for several decades, thus contributing to the construction and building of Burkinabe democracy.