I also don't dare to bring meat products overseas these days. Most countries that you can think of, either ban them or require declaration at customs.
If you have TWG or Bacha budget, I recommend you buy the Hock Hua F1-140g Aust Abalone. Very hard to give Thai people gifts because they got good shark fins, birds' nest, tea, etc.
F1 means single (big-sized)
FF1 is single + one half = individually smaller
Therefore 140g is big for single.
One CAN is less than $50, if you buy 6 or 12 (i forgot), got a little more discount.
For you own makan, they also sell B-grade, same good taste and quality but the abalone is born a little uglier (naturally), F&B towkays like
@JohnTan use this type for business.