In the last decade, the world leather industry has undergone tremendous changes. In the Americas, especially South America, exports to Europe and Asia have been the original leather, wet blue leather and semi-major one of NOx. Argentina, Brazil, and Paraguay, which represent the Americas with its raw hide leather production resources, have more advanced tanning technology and are highly ranked in the world. AET is Paraguay's leather manufacturing exporters and is the world's most potential exporter of high-grade leather, processing 1.2 million a year the leather. Brazil is the world's major cattle and livestock producer and one of the largest leather producing countries. It ranks right after the United States and China, and is the world's third largest producer of raw hides, skins, and leather. Brazil's major export markets are Italy, China and Hong Kong. Argentina is the world's fourth largest producer of leather. The leather industry began in the 16th century and was brought over from Europe by Spanish colonists, bringing along their cattle and leather methods and technology. Over the years, the Argentine tanning industry has been a major force in the global leather industry.