You can contact the Tibet Autonomous Region Tourism Bureau(Telephone number for the Tourism Bureau: 86-891-6834313, fax number: 86-891-6834632) for their assistance to get the Tibet Entry Permit. You can't get it in Singapore.

The best solution is that you don't mention that you will visit Tibet on the Visa Application Form, then you will easily get the China L visa, you can first contact a travel agency in Chengdu and ask him to get the Tibet Entry Permit for you when you are still in Singapore. when you arrive in Chengdu, get the Tibet Entry Permit, then you can go to Tibet.

Dear Mrs Linda,

Thanks for the help. i have got the L visa. this is easy just like u mentioned. now is the turn to be a little bit more challenging :) Do u have any recommendation for the agency in chengdu to get the Tibet Entry Permit? if you do, mind provide me with the contact details.

Mr. soh, as I know, the tour operator of TravelChinaGuide apply for the Tibet Entry Permit for their tour member to Tibet, but I don't know whether it apply for Tibet Entry Permit for you if you don't join their tour and travel in Tibet alone. You can contact it to check it.