It's called Liberia. It has never been colonized and it's one of the poorest countries in the world.
Video explaining it's economic history:
https://www.youtube.com/watch?v=geBHeJYqL-o
And just like Wakanda, it's an ethno state. Only Black people can become citizens
Corruption is endemic at every level of the Liberian government.[93] When President Sirleaf took office in 2006, she announced that corruption was "the major public enemy."[85] In 2014 the US ambassador to Liberia said that corruption there was harming people through "unnecessary costs to products and services that are already difficult for many Liberians to afford".[94]
Liberia scored a 3.3 on a scale from 10 (highly clean) to 0 (highly corrupt) on the 2010 Corruption Perceptions Index. This gave it a ranking 87th of 178 countries worldwide and 11th of 47 in Sub-Saharan Africa.[95] This score represented a significant improvement since 2007, when the country scored 2.1 and ranked 150th of 180 countries.[96] When dealing with public-facing government functionaries, 89% of Liberians say they have had to pay a bribe, the highest national percentage in the world according to the organization's 2010 Global Corruption Barometer.[97]