Maybe a question more appropriate for the LH forum, or for LH directly?

I did find this http://cms.lufthansa.com/fly/us/en/0...502140,00.html

where it says,

"Miles can be earned throughout the entire route network and on all scheduled flights operated by Thai Airways."

and,

"On selected routes there is no possibility of earning miles. For further information, please contact your Service Center."

I am on a cheapo, (2,400 THB return) TG flight BKK-KKC-BKK, crediting to LH M&M, next week, so will report my experience.