PAO ONHP (ONHP) is Russian leading engineering company. 450 engineers work for ONHP. ONHP designs in compliance with international and European standards (ASME, API, DIN, ANSI, EN) and adapts projects to Russian requirements. ONHP headquarters is located in Omsk. ONHP branches are located in Saint-Petersburg, Belgrade (the Republic of Serbia), Pavlodar (the Republic of Kazakhstan), Novoshakhtinsk.