If you're curious about tea producing regions without grading systems, there are a few places that come to mind. In some smaller tea-growing areas, like those in parts of Africa and Latin America, tea is typically sold as bulk loose leaves or processed into teabags for export without much emphasis on specific grades or classifications. Instead of using grading systems, these regions may use alternative methods of categorizing tea based on factors such as cultivar, elevation grown, and processing style. However, it's worth noting that even in regions without formal grading systems, there can still be variations in quality and taste depending on factors like harvest season and production techniques.