The truck has arrived and completed the offload of the ceiling materials.
Here is the Elephant brand of #1 sheetrock that is available in Thailand.
This is the water resistant sheetrock that will be used in the toilets. My understanding is that it also resists bacterial and fungal growth. My guess would be that is need to be cleaned periodically with a bleach solution.
Here are the supports that appear to be either aluminum or stainless steel.
I am anxious to see what the house will look like once the ceiling is in. It should change the whole appearance of the house and the way it looks now.