Hi Ekhard,

Greetings.
I have managed to submit two concepts on the logo:
(#18781002)_logo based on client requisition of three bubbles.
(#18782746)_logo based on detail understanding of sustainability with the support of Environment, Society & Economy; &
(#18782747)_Explantion of the logo (#18782746).

Kindly check back the concepts & provide valuable feedbacks so then I may know what you require to achieve & develop the better logo for you.

Regards,
Noble.