None!
This is a subsidiary of TEX LEON SA. DE CV (the Taiwanese-owned Liang's corporate group). The salary for this position is US$1,000/month (you might as well choose Southeast Asia). Each month, a portion of the airfare advanced by the company will be deducted first according to a set ratio, and it will not be reimbursed until the third year. Please read the following information to understand how this company treats Taiwanese employees before considering applying!
1. http://www.backpackers.com.tw/forum/showthread.php?t=1521501 (Backpackers' Inn forum, page 3)
2. https://www.ptt.cc/bbs/Gossiping/M.1438905411.A.9E5.html (PTT Bulletin Board System)