06/01/2026
Maimuna Yusuph used to walk to the riverside to collect water for her family in Tanga, Tanzania.
Miles walked. Buckets carried. Sources that ran dry on arrival.
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In 2024, the Tanga Urban Water Supply and Sanitation Authority issued East Africa's first subnational green bond, raising $20.8 million to upgrade the city's water system. The bond was listed on both the Dar es Salaam Stock Exchange and the Luxembourg Green Exchange and was oversubscribed by 103%.
π€ UNCDF provided two years of technical and financial advisory support to help Tanga UWASA structure the bond, strengthen governance, and meet international investment standards β alongside $1 million in catalytic funding to absorb early risk and crowd in private investment.
The result is a transformation already underway:
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Water production capacity expanding from 45,000 to 60,000 cubic metres per day
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60 kilometres of new pipelines
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110 kilometres of aging pipes rehabilitated
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12,000 smart prepaid water meters installed
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26,000 residents gaining access to clean water for the first time
We told this story in full with voices from the ground in Tanga.
π Read it here β‘οΈ https://bit.ly/4uEAYIV