Ok so I’m assuming that this is a Wuyi cultivar either grown or processed or both in Taiwan. It is roasted and rolled in typical Taiwan style. It is good. Gingko puts it in grapefruits: http://steepster.com/teas/homemade/11640-tea-grapefruit-made-with-taiwan-wuyi
It’s also benefited from a little ageing which gives added character to the juicy, chocolaty flavors. I’d say it’s like a well roasted Dong Ding but somewhat heavier in the chocolate department a la Da Hong Pao. The hui gan is beautifully light, fresh, and surprisingly green.