I fear that web site may be in error. I searched the Greenball
web site and I didn't find a tire with that part number.
The closest they come is a TH14205C which is a load range C tire. The last character of the part number is the load range.
It's possible that Greenball once made a tire as described and this is old stock, but why would they have changed the way the number them?
Of course, if you have purchased this tire you could just look on the tire for the actual load range.
I really wanted this to be a load range E; at that price it would be a killer deal.
I hope you don't think I'm shooting the messenger (you).