Good day, Im holding a Singapore passport, and keen to travel to tibet, but i m travelling alone. May i know the how may i obtain the permit

Dear Mr.Kim Thanks for leave your message to us. May i know when are you planing to visit tibet? and for how many days? we will see if there any other singapor visitors same as your time and plan since you only have one person. Awaiting for your advice with thanks Warm regards Ling