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| Order By | Project Name | Period | Country | ||
| Konoike Construction LTD. | Bahar Dar Water Purification Plant Project | 2019 | - | Ethiopia | |
| Hazama Ando Corporation | The Project for Improvement of Water Supply in Pokhara | 2019 | - | Nepal | |
| Konoike Construction LTD. | The Project for Improvement of Water Treatment Plant in Kosti City | 2018 | - | Sudan (North) | |
| Hazama-Ando Corporation | The Project for Improvement and Extension of Water Supply System in Comayagua City | 2018 | - | Honduras | |
| Konoike Construction LTD. | The Project for Rural Water Supply in Lake Kyoga Basin, Eastern Uganda | 2018 | - | Uganda | |
| Dai Nippon Construction | The Project for Rehabilitation and Expansion of the Water Networks in Balqa Governorate | 2018 | - | Jordan | |
| Dainippon Construction | Port Moresby Wastewater Management Improvement Project | 2016 | - | Papua New Guinea | |
| Dainippon Construction | Iebid Water Supply Project | 2015 | - | 2017 | Jordan |
| Hazama-Ando Corporation | Paraguay Eastern Water Supply Project | 2015 | - | 2017 | Paraguay |
| Dainippon Construction | Juba Water Supply Project | 2015 | - | 2016 | South Sudan |
| Dainippon Construction | Pianji Water Supply Project | 2015 | - | 2016 | Tajikistan |
| Konoike Construction LTD. | Samoa Water Supply Project | 2015 | - | 2016 | Samoa |
| Torishima Punp Mfg Co,.LTD. | Yangon City Water Supply Project | 2014 | - | 2015 | Myanmar |
| Konoike Construction LTD. | The Project for Augmentation of Water Supply System in Narok | 2014 | - | 2014 | kenya |
| Dainippon Construction | Tafi Water Supply Project | 2013 | - | 2014 | Jordan |
| Torishima Punp Mfg Co,.LTD. | The Project for Expansion of Water Supply System in Faisalabad | 2013 | - | 2014 | Pakistan |
| Daiho Constraction LTD | The Project for Rehabilitation of Killinochchi Water Supply Scheme | 2013 | - | 2014 | Sri Lanka |
| Konoike Construction LTD. | The Project for Improvement of Water Supply System at Kassala City | 2012 | - | 2014 | Sudan (North) |
| Hazama Corporation | The Project for Urgent Reconstruction of East Pump Station of Pluit in Jakarta | 2012 | - | 2013 | Indonesia |
| Hazama Corporation | Concepcion City and Pilar City Water Supply Project | 2012 | - | 2013 | Paraguay |
| Tone Engineering Corporation | The Project for Rural Water Supply（Phase2） | 2011 | - | 2013 | Rwanda |
| Hazama Corporation | Potosi water treatment plant Project (above sea level 4,000m) | 2010 | - | 2011 | Bolivia |
| Tone Engineering Corporation | The Project for Rural Water Supply in Oromia Region | 2010 | - | 2012 | Eritrea |
| Koken Broing machine Co,.LTD. | Memotto State Water Supply Project | 2010 | - | 2010 | Cambodia |
| Hazama Corporation | Cochabamba Water Supply Project | 2010 | - | 2010 | Bolivia |
| Koken Broing machine Co,.LTD. | Mali Southern Water Supply Project | 2009 | - | 2009 | Mali |
| Hazama Corporation | Kingston Water Supply Project | 2009 | - | 2010 | Haiti |
| Toa-Tone Broing Co,.LTD. | The Project for Water Supply in Afar Region | 2009 | - | 2010 | Eritrea |
| Urban Tone Corporation | Conakry Water Supply Project | 2008 | - | 2009 | Guinea |
| Marubeni Corporation | Pump station construction and in-water water pipe laying work | 2008 | - | 2010 | Qatar |
| Ohbayashi Corporation | Dacca Rain Water Drainage System Project | 2008 | - | 2008 | Bangladesh |
| Hazama Corporation | Tegucigalpa Water Supply Project | 2008 | - | 2009 | Honduras |
| Dainippon Construction | Debubu Water Supply Project | 2008 | - | 2008 | Eritrea |
| Kitano Corporation | Corriverton City Water Supply Project | 2008 | - | 2008 | Guyana |
| Hazama Corporation | Vietnam Central part Water Service Establishment Project | 2008 | - | 2009 | Vietnam |
| Shimizu Corporation | Rwanda Eastern Water Service Establishment Project | 2007 | - | 2008 | Rwanda |
| Kajima ・Nishimatsu JV | Construction of Sewage Treatment Plant Project | 2007 | - | 2008 | Malaysia |
| Pacific Consultants International | Ho Chi Minh City Water Environmental Management Project | 2006 | - | 2008 | Viet-Nam |
| Hazama Corporation | Nepal Local Region Water Supply Project | 2006 | - | 2006 | Nepal |
| Fujita ・Hazama JV | Ibarra Water Supply Project | 2006 | - | 2007 | Ecuador |
| Taisei Corporation | Faisalabad Water Supply Project | 2005 | - | 2006 | Pakistan |
| Hazama Corporation | Quetzaltenango Water Supply Project | 2005 | - | 2005 | Guatemala |
| Nippon Jogesuido Sekkei Co.,LTD. | Ulaanbaatar Water Supply Project | 2005 | - | 2007 | Mongolia |
| Hazama Corporation | South Tanzania Water Supply Project | 2005 | - | 2006 | Tanzania |
| Hazama Corporation | Siem Reap Water Supply Project | 2005 | - | 2005 | Cambodia |
| Taisei Corporation | Kandy Water Treatment Project | 2004 | - | 2007 | Sri Lanka |
| Taisei Corporation | Matara Water Supply Project | 2004 | - | 2006 | Sri Lanka |
| Konoike Construction LTD. | Kiffa water Supply Project | 2003 | - | 2004 | Mauritania |
| Taisei Corporation | Meru Water Supply Project | 2003 | - | 2004 | Kenya |
| Hazama Corporation | North Viet-Nam Water Supply Project | 2003 | - | 2005 | Viet-Nam |
| Taisei Corporation | Thang Long Water Supply & Sewage disposal Project | 2003 | - | 2004 | Viet-Nam |
| Taisei-Hazama JV | Kathmandu Water Supply Project | 2002 | - | 2004 | Nepal |
| Konoike Construction LTD. | Guatenala Water Treatment Project | 2002 | - | 2002 | Guatemala |
| Taisei-Kumagai JV | Nuwara Eliya Water Supply Project | 2002 | - | 2003 | Sri Lanka |
| Konoike Construction LTD. | The Rural Water Supply Project(Serawesi Island) | 2001 | - | 2004 | Indonesia |
| Hazama Corporation | Tegucigalpa Water Supply Project | 2000 | - | 2002 | Honduras |
| Hazama Corporation | Pulref Water Supply Project | 2000 | - | 2001 | Morocco |
| Konoike Construction LTD. | Guatenala Local Water Treatment Project | 2000 | - | 2000 | Guatemala |
| Hazama Corporation | Hai zun Water Supply Project | 2000 | - | 2000 | Viet-Nam |
| Hazama Corporation | Managua Water Supply (2) Project | 1998 | - | 2001 | Nicaragua |
| Taisei Corporation | Khanpur Water Treatment Project（Equipment installation work） | 1996 | - | 1998 | Pakistan |
| Hazama Corporation | Managua Water Supply Project | 1995 | - | 1997 | Nicaragua |
| kokusai-Kogyo Co., Ltd | Managua Water Supply Project | 1995 | - | 1997 | Nicaragua |
| Taisei Corporation | Khanpur water treatment Project （Civil work) | 1995 | - | 1999 | Pakistan |
| Hazama Corporation | Zaram Water Supply Project | 1995 | - | 1996 | Viet-Nam |
| Taisei Corporation | Simili Water Supply Project | 1994 | - | 1995 | Pakistan |
| Taisei Corporation | Jog Jakarta sewerage Project | 1994 | - | 1995 | Indonesia |
| Hazama Corporation | Katmandu Water Supply Project | 1994 | - | 1994 | Nepal |