This case records the on-site installation of our foldable container houses for a project in Nigeria. The local area has a tropical rainy climate with high air humidity and abundant rainfall. This cabin adopts thickened wood-look wall panels and glass windows fitted with protective insect screens. Its waterproof and moisture-proof performance has been specially optimized to withstand damp conditions in the rainy season and reduce corrosion by moisture. The product features a modular foldable structure with simple operation. Only two workers can finish unfolding and assembly on site without heavy machinery, greatly saving labour and construction time. Basic prefabrication is completed before delivery. Water and power connectors are pre-installed, so the unit can be put into service once assembled. When folded, the cabin takes up little space and is convenient for sea shipment, effectively reducing cross-border transportation costs. It is widely used for infrastructure dormitories, field camps, temporary offices and rural resettlement housing in Nigeria. Multiple units can be joined together for expanded space. The cabins can be disassembled, relocated and reused many times. Jinzhong provides customized waterproof and anti-corrosion configurations tailored to the local climate, with one-stop production and technical guidance. It is an ideal solution for temporary buildings in hot and humid regions of Africa.