Chenpi is made from aged citrus peel, and citrus is grown in many regions, so chenpi has multiple origins beyond Pubei.
Common producing areas include Sichuan, Zhejiang, Fujian, Sihui, Jiangxi, and Guangxi. Differences in raw materials and processing lead to distinct aromas and taste profiles.
Overall, any citrus peel that has been properly aged can be called chenpi, with regional differences mainly reflected in aroma, taste, and processing style.