Oolong tea is produced in China, Fujian, Guangdong and other places. The name "oolong tea" was mentioned in Notes on Materia Medica in Tang Dynasty. Oolong tea, as one of the famous special teas in China, has many functions such as anti-oxidation, anti-aging, anti-cancer, sterilization, weight loss and longevity.

Oolong tea varieties include Anxi Tieguanyin, Huang Jingui, Yongchun Bergamot, Wuyi Narcissus, wuyi cinnamon, Phoenix Narcissus, Chaozhou Phoenix Dan Cong, Lingtou Dan Cong, Raoping Color Variety, Taiwan Frozen Top Oolong, and Alishan Alpine Tea in Taiwan Province Province.

If you need more detailed information, I suggest you look it up through search engines or related websites.