2010 witnessed the successful completion of a collaboration established by a Memorandum of Agreement (“MoA”) dated 4 September 2008 between PNSB, the Karachi Water and Sewerage Board (“KWSB”) and the Asian Development Bank (“ADB”) in relation to the formation of a voluntary partnership with KWSB to provide voluntary services to KWSB through a Twinning Arrangement implemented and financed by ADB as a South Asian Water Utilities Network activity under the Water Operators’ Partnership Programme (“Twinning Arrangement”). The MoA ceased on 30 November 2010 upon the successful completion of the Twinning Arrangement. 

Through the Twinning Arrangement, PNSB has contributed in enhancing the operation and maintenance of the Pipri WTP in Karachi via developing Standard Operating Procedures for KWSB covering staff training, water quality, maintenance of equipment and safety with the view to increase efficiency and reliability comparable to international best practices.