Nimba Airport's answer to the lounge question is no, and the airstrip's mining-camp history explains why. Nimba serves the iron-ore mining country of Liberia's Nimba Range, near Yekepa, an area long associated with LAMCO's iron-ore operations, and the airfield exists primarily to move mining personnel and equipment rather than a commercial passenger base with lounge demand.
The ground-side reality at Nimba is a mining-camp one rather than an airport-terminal one. Travelers connected to the iron-ore industry typically wait in company facilities tied to the mine and its operations rather than a public concourse, and the airstrip itself is built for utility, moving workers, supplies, and occasional charter traffic, not for a premium passenger experience. The Nimba Range itself, straddling the borders of Liberia, Guinea, and Cote d'Ivoire, is known internationally for its biodiversity as much as its ore deposits, though the airstrip's daily business remains firmly industrial, and visiting researchers sometimes use the same charter and utility flights as mining personnel, another reminder that this is a working airfield tied to a specific industry rather than a general travel gateway.
Monrovia's Roberts International Airport is Liberia's real international gateway and the place where a genuine lounge conversation applies, since it handles the country's scheduled international connections and a passenger volume that a remote mining-range airstrip like Nimba was never designed to carry.
If your travel involves Nimba, it is most likely tied to mining-industry business rather than a scheduled ticket, so expect a functional, utility airstrip experience rather than airport amenities of any kind. Arrangements change - verify current access, charter options, and any company-arranged transport directly with your employer or operator before you travel, since service to a range strip like this depends on industry activity rather than a published commercial schedule. Whatever your routing, verify current arrangements before the day of travel.