Non-financial reporting process and methods

Reporting criteria: GRI Standards - Core
This report has been prepared in accordance with the GRI Standards: Core option. An overview of the GRI disclosures covered by this report is available on BAM’s website ( In this overview, more information is disclosed on the nature and coverage of reporting per GRI disclosure (e.g. quantitatively or qualitatively).

Reporting period and reporting frequency
This report presents both quantitative and qualitative data for the calendar year 2021. The data for BAM Deutschland has been included until the date of the completion of divestment (18th of October). For CO2 and waste, the final days in October have been extrapolated based on the data until October. No other significant changes from previous reporting periods in the scope and boundaries have been incorporated.

Reporting boundaries
In general, BAM applies the share of equity approach to account for non-financial performance and data. As an exception to this rule, BAM International reports all non-financial data for joint arrangement projects in which it is the leading party. In general, BAM views disclosure regarding acquisitions and divestments on a case-by-case basis.

Reporting process
The annual report, including all material aspects, is compiled by the Executive Board and discussed with the Supervisory Board. BAM uses a reporting system for non-financial information (including safety, CO2, waste and HR), as an extension of the financial reporting system. The applied reporting processes and definitions are formalised in BAM’s non-financial reporting manual, which provides guidance on how to collect, consolidate and report data. BAM’s main non-financial topics and indicators are described below.

Reporting indicators
For BAM’s main non-financial indicators this chapter provides further insight below. For other quantitative indicators disclosures on the reporting scope and methods used are given elsewhere in this report.

BAM defines its incident frequency (IF BAM) as the number of BAM employees (not including site employees outsourced to external companies) involved in industrial incidents leading to absence from work, per million exposure hours on construction sites. Reportable incidents are based on actual occurrences and are never extrapolated or estimated. Despite all measures and an open safety culture there is an inherent risk of incomplete accident reporting. BAM is partially dependent on information provided by the person involved in an accident. The exposure hours are measured, calculated or estimated. 

The absolute number of reported serious accidents covers:

  • People working on sites managed by BAM: BAM employees, subcontractors, hired employees and thirds;
  • Joint ventures: BAM employees, BAM subcontractors and employees directly hired by BAM. 

Business conduct and transparency
BAM has selected the percentage of employees that completed the Code of Conduct e-learning as KPI for business conduct and transparency. The definition of this KPI is: percentage of selected BAM employees that have completed the Code of Conduct e-learning since the launch in November 2019, to embed the training and awareness on the Code of Conduct requirements and reporting, potential dilemma’s and guiding employees in their decisions on Code of Conduct-related matters. The scope of the selected employees for the e-learning are all BAM employees in offices and project offices and excludes blue-collar employees (e.g. carpenters, technicians) who are trained via a toolbox session. The e-learning is also not applied to subcontractors and suppliers on site.

Human Resources (HR)
HR data are mostly derived from the BAM Group HR system, called BAM People, supplemented with figures from local systems in Belgium, Germany and for BAM International. Employee engagement figures are derived from our system named Glint. 

The totals from BAM People source system may occasionaly vary, depending on when a report was generated. This can lead to small differences without a significant impact on conclusions and insights.

Energy consumption and CO2 emissions
BAM’s energy consumption and greenhouse gas inventory are based on the Greenhouse Gas Protocol Corporate Accounting and Reporting Standard, Revised Edition as issued by the World Business Council for Sustainable Development and the World Resources Institute. BAM reports its greenhouse gas emissions as CO2 equivalent, considering other greenhouse gasses than CO2. BAM calculates the energy consumption (in terajoules) and CO2 emissions associated with BAM’s energy consumption, using conversion factors from reputable and authoritative sources. BAM applies country-specific conversion factors for electricity and natural gas, based on GHG emissions reported in national inventory reports (NIR). BAM uses tank-to-wheel emission factors. All conversion factors are reviewed annually and updated if necessary.

BAM’s reporting scope includes its direct CO2 emissions (scope 1 emissions, from BAM’s own sources), indirect CO2 emissions from the generation of purchased electricity consumed by BAM (scope 2 emissions) and employee travel-related scope 3 emissions. The GHG Corporate value chain (scope 3) accounting and reporting standard for full scope 3 reporting has not been implemented, but BAM does disclose its full scope 3 emissions in its annual CDP response which is publicly available. Contrary to the Greenhouse Gas Protocol, BAM reports fuel consumption by leased vehicles under scope 1 emissions. Energy consumption from district heating and use of public transport are considered negligible and they are therefore not included in BAM’s overall energy consumption and related CO2 emissions. Activity data, mostly based on meter readings, invoices and data provided by suppliers, are used to calculate BAM’s footprint. Where complete and accurate data are not available, BAM uses calculations or estimations using reliable methods and input data.

Where clients provide BAM with electricity and BAM receives reliable information on its client-supplied electricity consumption, the Company includes this consumption in its carbon footprint. It occurs on projects that BAM supplies fuel and electricity to subcontractors. In accordance with BAM’s non-financial reporting manual the supplied fuel and electricity to subcontractors should be measured and excluded from reported figures, unless fuel and electricity are supplied under the supervision of BAM. In practice, however, it is not always possible to determine how much fuel is supplied to subcontractors. In that case BAM accounts for all CO2 emissions. 

The reporting scope includes all waste leaving BAM’s sites and offices, mainly based on waste tickets and data provided by suppliers. Reported waste is either measured, calculated or estimated using reliable methods and input data which can be based on BAM’s experience in comparable works. Excavation waste and demolition waste are especially difficult to measure and are more often calculated.

Construction and office waste consist of temporary and permanent (construction) materials and packaging brought on to sites which are to be discarded and subsequently leave offices, construction sites and/or BAM sites such as depots or premises.

BAM reports the amount of materials used and the recycled content of various materials used by Dutch operating companies. Raw materials which are consumed in large quantities and which have a significant impact on natural resources have been selected. The Company reports on concrete, timber, asphalt and steel.

Raw material consumption in the Netherlands was determined using supplier reports. Extrapolation of data was applied to cover all suppliers. BAM aspires to keep the extrapolated data below 20 per cent. The results are verified against BAM’s procurement database, internal and external experts. The recycled content was determined based on information provided by suppliers.

The Executive Board has appointed Ernst & Young Accountants LLP (EY) to provide independent assurance of the report to provide BAM’s stakeholders comfort over BAM’s non-financial information. 

BAM has obtained limited assurance for all non-financial information reported in paragraphs 2.1, 2.2, 2.3, 3.2, 3.3, 9.6, 9.7 and on the GRI disclosures as published on BAM’s website.



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