Answer: Since 2016, the United States, India, and Brazil
Explanation: Since 2016, the United States, India, and Brazil have consistently been the largest producing countries and exporters of cotton lint, exporting about 3.8 Mt, 1 Mt, and 2.1 Mt, respectively, in 2020, while China, Vietnam, and Bangladesh have consistently been the biggest importers, importing about 2.2 Mt, 1.4 Mt, and .