Tags Hoa Binh Corporation Viet Nam and Hungary co-operate in utilisation of wastewater Saturday, May 20, 2017 Vietnamese construction company Hoa Binh Corporation and Hungarian company Thermowatt Ltd. on May 19 signed a Memorandum of Understanding on the technology of utilising wastewater for cooling large buildings. Construction starts on Holm Residences Wednesday, Sep 23, 2015 Construction on the riverside villa project, Holm Residences, started this week in HCM City.