I will find it tonight or tomorrow, I used it for a research paper. The source was UAA I believe. There's corporate individual tax, which is the 0-9.4% But there's a higher corporate level tax in the shape of privelage tax (or similar). I looked on alaska.gov tax site but they do not say much (go figure). 

It could have been a combination of unemployment tax, phone usage rights, and privelage.