Enchanted Purple Jade

SS Companion

The Enchanted Purple Jade teaches the Zipao Tiger companion.

Source
This item is available through the Recruit-A-Friend program.

This pet was available for a limited time to players in Taiwan when they prepaid for a certain amount of World of Warcraft game time prior to March 4, 2010.

Pet Journal
A rarely seen family of tigers, many believe (perhaps incorrectly) that some residual magic or other event is responsible for the unique color.