India and Vietnam each hold 23.3% of Darjeeling Black Tea suppliers, with Sri Lanka at 12.3% — a split between two major tea-producing regions and a smaller third contributor in the supply chain.

3.4% of all listings were added in the last 30 days, indicating a steady but limited influx of new supply. 43.8% of suppliers were active in the last 90 days, and 61.6% carry business verification — a base that is partially active and a majority has undergone documentation validation.