noun, noun, used as a suffix
exporting country
Refers to a country that exports goods. Often used as a suffix in compounds like 石油輸出国 (oil-exporting country).
日本は自動車の主要な輸出国です。
Japan is a major exporter of automobiles.
石油輸出国機構はOPECとも呼ばれる。
The Organization of Petroleum Exporting Countries is also called OPEC.
輸出 is the noun 'export' or the verb 'to export'. 輸出国 is the country that does the exporting.
Compound of 輸出 (export) + 国 (country).