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i dont know in the world BUT NOVA LEATHERS, Leather Fields are the largest manufacturer and exporter of leather garments.
Australia is the largest exporter of coal ~ see related link below .
The United States is currently the world's largest phosphate exporter.
Chile is the largest exporter of copper in the world.
Japan
Bangladesh
Indonesia
Russia
I assume you mean exporter. The second largest exporter of coffee is Colombia.
United States
Chile
Africa