So, I *think* this is a bug. Under my industry skills list there is only mining.
That's correct and that's not a bug

We moved all mining related skills to a new category - industry since "engineering" category was a bit too much full.
Then we added some more skills there in engineering and moved a few things around.
Bottom line is - everything is a bit more logical now

I was under the impression that there was a new set of skills for trading. there is also only one set of skills under social (but that might be right, not sure).
Not a set, just one new skill for trading - one that increases gained EXP from trading. This might be useful if you trade a lot.