The meat was transported from Liousesso, a village southwest out Ouésso, and often on logging trucks from Cameroon.

[6] On 27 October 2016, ivory dealer Hamadou Abbo, and his accomplices, Minda Xavier and Gonock Evounanga Edgard, were each sentenced to 5 years in an Ouésso prison.

[10] In 2010, the Parliament of the Republic of the Congo passed a law that gave protection to the country's indigenous pygmy and Baka people and their land.

[11] In April 2007, a South Korean consortium proposed to build a railway to Ouésso from Brazzaville, in exchange for a concession to harvest timber.

The expansion was funded by the Development Bank of the Central African States,[13] which has a complex in Ouésso.

[16] In 2023, the Chinese National Development and Reform Commission built the Sanha Bridge and the Ouésso-Pokola Road for Ouésso.