Balfour Beatty's dambuilding practices were challenged at its annual meeting this week.
The green pressure group Friends of the Earth tabled a resolution calling for changes to the company's plan for the Ilisu Dam in Turkey, after acquiring £30,000 of Balfour Beatty shares in March.
The resolution urged the company to adopt guidelines laid down for contractors in a report by the World Commission on Dams.
Friends of the Earth claims that the report is widely considered to be a benchmark standard in the sector.
Speaking at the meeting, Balfour Beatty chairman Lord Weir said the company had launched initiatives related to corporate responsibility policies and practices.
He said: "Next year, we intend to accompany the publication of the annual accounts with a separate report on environmental and related issues."
