鉱区 こうく使用 しよう りょうではありませんでした
kō kushiyōryōdewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 鉱区使用料

1. It was not a mining area usage fee.; It wasn't the mining area usage fee.

Past/Perfective
Negative
Polite
Formal Register