Notes on sustainability data

MOL Group indicators are mainly based on measurements and calculations, and in some cases on estimations, depending on the specific topic and site. Data is generated and collected at the local level following the relevant corporate guidelines. Group level data is collected through the different business or functional divisions. The completeness and accuracy of the reported data is supervised at the corporate level.
 
Depending on site circumstances and local regulations, we discharge treated wastewater streams into surface waters or into the municipal sewage system. According to the nature and quantity of pollutants, the most commonly used wastewater treatment strategies at our facilities are mechanical and/or biologically based (but extend to chemical treatment steps where needed). We do not believe that breaking down data by destination and treatment method is material, therefore we do not report on it.
 
According to information provided by our contractors, waste disposal methods have been classified using European Union guidelines.
 
Employee engagement level:the first 9 questions of the survey are related to the general engagement of employees, rated on a 1-4 scale. Three groups can be distinguished by using the following clusters: 2,5 >= disengaged; 3,2 >= partly engaged >= 2,56; 3,22 <= engaged. In order to make the data more informative, we use percentages. 
 
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