紛争 ふんそう鉱物 こうぶつではありませんでした
fun sō kōbutsudewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 紛争鉱物

1. Was not a conflict mineral.; Was not a mineral conflict.

Past/Perfective
Negative
Polite
Formal Register