Grill With Bio Charcoal-Like Material?

I was at a German grocery this week, and this odd bag of charcoal sat there.

Bio charcoal.

So the deal?  Corn cobs.  A good burn?  I paused and just wondered over this.  Normally, it simply isn't what you'd go and put on a grill for steaks.  It is natural and bio....I would assume.

Beyond that....a question mark.