This is Golden Key oolong. Oolong produced in Fujian, Xiamen have names given by a tea village or town. Such names are meant to give a uniqueness to their oolong produced there. You would know the popular oolong names like Shui Hsien, Tie Kuan Yin and Rougui. Other lesser known oolong names include thousand mile fragrance, Fo Shou (buddha palm) and half waist squat (I kid you not).
This Golden Key oolong (2018 production) I had purchased is from the famous Sea Dyke factory. Sea Dyke labelled this tea as Golden Key rock tea that suggested that this tea may had been harvested from the Wuyi mountain region. Packed and sold in a metal tin, the 100g of tea leaves are long and vibrant.
When I brewed a session of this tea, initial aroma is very fragrant and perfumed like. Very pleasant. The roast is high and the aftertaste is pretty long lasting. Good for 6 infusions before weakening. This tea is less robust than Sea Dyke Lao Chong Shui Hsien (yellow tin).
An inexpensive tea. I would recommend you get a tin.