Major shareholders in Post Publishing include the Chirathivat family ( owners of Central Group ) Thailand 's biggest media and entertainment company .
The Chirathivat family ( owners of Central Group ) is the South China Morning Post of Hong Kong and GMM Grammy Pcl .
Major shareholders in Post Publishing include the Chirathivat family ( owners of Central Group ) , the South China Morning Post of Hong Kong and GMM Grammy Pcl , Thailand 's biggest media and entertainment company .