Originally Posted by LapLap
The front of the pack (the box) has 4 characters which in Japanese share meanings for (an abrevation of) Africa - Ri (the measurement) - Mountain - Tea.
Inside, on the pack itself, the same characters are used alongside three others: High - Mountain - Tea
阿里山茶
Arisancha in Japanese - likely pronounced somewhat differently in Chinese.
Searching Google, I found that it's a type of oolong tea grown at high altitude. So try it with very hot water (98 degrees celcius). Steep for a short time. Throw away the first lot (but check out the aroma). And then drink from the second infusion.