Based in Njombe district, HUDEO's activities include providing sustainable agriculture skills, improving health with clean water supplies, and promoting environmental protection through afforestation.

Msingi katika wilaya ya Njombe, HUDEO wa shughuli ni pamoja na kutoa ujuzi wa kilimo endelevu, kuboresha afya na vifaa vya maji safi, na kuendeleza uhifadhi wa mazingira kwa njia ya upandaji miti.