I have a question about how much would  a Pet cremation cost here in the northeast(isaan) part of Thailand. 
Don’t need it now but would like to just know it. I have 1 dog that’s 5 years old now but I saw my Thai neighbor’s dog died today and was just wondering how much it just the cost is. He buried it under his banana tree (his property)

There's a few cats fertilizing our garden. That's how nature works.

Have had a couple of our old friends cremated here in Chiang Mai. Based on size, last year a Shi Tzu 600 baht, few years back German shepherd 1,000 baht. Collected the ashes the following day provided with a red bag or you can provide your own urn/box.

I have 6 pets and a few various injured wild critters who we cared for but didn't make it buried in the back section of our yard.  Pretty much a pet cemetery.

1 hour ago, Moonlover said:

There's a few cats fertilizing our garden. That's how nature works.

And I agree.  The section of road we live on is just an animal thresher.  There are dead dogs and cats buried all over the place around our neighborhood.  As Moonlovers stated, "That's how nature works."
If you pet dies, plant him and then plant a tree over the top of him.  You pet's body is done.  They only live on in your heart.