Moving sidebars in post pages

I want for the following page, that features the posts made in the site, not to show the Countries and Toolbox widgets: http://healthyenergyinitiative.net/revamp/category/healthy-energy-initiative-news/
I was able to show and hide those widgets in the rest of the pages as needed but not in the page that shows the posts.

Any ideas of what I can do?

Thank you!