(Plastemart) -- Mott MacDonald has completed an international environmental and social impact assessment (ESIA) and environmental and social management plan for the biggest gas and petrochemical project being developed by Uz-Kor Gas Chemical in the Commonwealth of Independent States (former Soviet Union). The Surgil Gas and Petrochemical Complex project in Karakalpakstan will include the development of the Surgil gas field and a state-of-the-art gas chemical complex that will produce natural gas and petrochemical products such as high density polyethylene (HDPE) and high density polypropylene (HDPP). The facilities will include new 115km pipelines for gas and condensate. Mott MacDonald has been instrumental in supporting Uz-Kor with meeting international environmental and social requirements as it seeks to obtain financing for this USD 4.1 bln project from the Asia Development Bank (ADB) and a group of commercial lenders being led by ING.