We don't like this fee either. This is a newer charge that started some time in late 2014. It covers an early filing requirement that a Japanese Government agency is now requiring. I'm not sure what agency in Japan is making this request, but all carriers started charging this fee at the same time to cover this new request. It is a huge pain for us as well because we generally don't have all the information from steamship lines regarding cargo on a vessel before this information is due.
I will do some more checking, but fee is being generated by documentation request changes from Japan.