Looking on the internet deeply has found these results:

thank you for your cooperation is the most popular phrase on the web.

Thank you for your cooperations 112,900 results on the web	thank you for your cooperation 16,890,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	I wish you a successful career in office, a relaxing holiday, and thank you for your cooperation. You're free to go. I want to thank you for your cooperation. eight minutes replying to the honourable Members. Thank you for your cooperation, Charlie. Mr Nielson, I congratulate you and thank you for your cooperation since you have not spent just twenty minutes, but forty Well, thank you for your cooperation. Thank you, thank you for your cooperation, dennis. Thank you for your cooperation.

Thank you for your cooperations

112,900 results on the web

thank you for your cooperation

16,890,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

I wish you a successful career in office, a relaxing holiday, and thank you for your cooperation.
You're free to go. I want to thank you for your cooperation.
eight minutes replying to the honourable Members.
Thank you for your cooperation, Charlie.
Mr Nielson, I congratulate you and thank you for your cooperation since you have not spent just twenty minutes, but forty
Well, thank you for your cooperation.
Thank you, thank you for your cooperation, dennis.
Thank you for your cooperation.