Last year, Shs500m proceeds were given to Kampala Capital City Authority (KCCA) for construction of five bio-gas toilets in Kasubi, Kitebi, Kisaasi, Naguru Katali and Police primary schools.
MTN's partners, Huawei has also offered Shs250m for this event where participants will do wheelchair, tri-cycle, 10km, 21km and 42km events. Stanbic Bank, Rwenzori are among the other sponsors.
Set to take place on 20th November 2016 in Kampala, Uganda, the 42km marathon has grown to collect money worth Shs2.3bn for proceeds towards different causes, since its inception in 2004.
Wim Vanhelleputte, MTN CEO said: "We are going to paint the city yellow as we join hands to improve access to sustainable water sanitation for children around our city.
"Proceeds from this marathon will be used for construction of environmental friendly, smart bi-toilets in selected schools in the suburbs of Kampala.
"The facilities will also generate environmentally friendly bio-gas for cooking and access to clean water."
Juliet Namuddu, KCCA director of education and social services said: "First we are grateful for the contribution from last year. We are also privileged that a second straight edition of the Kampala Marathon is for the benefit of children."
"These interventions will boost our effort to achieve our target of reducing the pupils' stance ratio of 50 children to a stance down to below 40 children to a stance."