Why are you doing it?
What's it for?
Who is the intended audience?
Do you know what your main impacts & effects are in relation to sustainable development criteria?
Do you have any programmes for managing what you do or improving/ reporting your performance?
How do you deal with wider social issues?
Do you have any sustainable development policies to speak of?
For good advice you need to be able to answer these questions and some.
Otherwise just do what lots do and write some crap about how the company is committed to sustainable development and continuous improvement.