Ronan is in Vietnam at the moment for tomorrow's Miss Earth coronation night, where he will be performing 'When you say nothing at all' and 'The way you make me feel'. The event will be streamed live on pageantism.com.

Here's a couple of links to photos of him arriving:

Dan Tri
tin247.com
Thanh Nien Online
2sao

Update: Press conference photos and a link to watch his performance added below.

Dan Tri
VnExpress (2 pages - follow the highlighted link)
60s
tuoi tre
ngoinhait.net forum
Performance pics and video on Dan Tri
Hspb.net
Press conference photos on Picasa (Thanks to Pavlina for finding these)