noun
Mitsui Mining and Smelting Co., Ltd.
Full formal name of a Japanese non-ferrous metals and materials company. Often abbreviated as 三井金属 (Mitsui Kinzoku) in business contexts.
三井金属鉱業は非鉄金属の大手メーカーです。
Mitsui Mining and Smelting Co., Ltd. is a major non-ferrous metals manufacturer.
Common abbreviation of 三井金属鉱業, used in news and business.
Company name combining 三井 (Mitsui, the founding family/group), 金属 (metals), and 鉱業 (mining industry).