If you can wait I think prices will plummet around end of August as Thailand realises it has lost its place as the number 1 destination and due to additional fees and scams people are staying away. At the moment they think just opening up fully will put everything back to normal. Sadly that won’t be possible and the reviews will soon prove that.
it’s simply done. If there are 100 shares you have 49 A shares and the other 51 is owned by the Thai. In the Mens and articles a motion is passed that A shares have a voting value of 1.5 times those of b shares. They are both of the same monetary value but the control rests with you.