Est Cola, new cola brand in Thailand only from Sermsuk company. Formerly, Sermsuk was the producer and sale agent of Pepsi (Thailand). Unfortunately, Sermsuk terminate one"s contract with Pepsi (Thailand) since the end of october 2012. Sermsuk manufacture Est Cola replace Pepsi and made Pepsi be lack of thai market. However, Pepsi will coming soon in Thailand, but not Sermsuk anymore. In my opinion, I think it"s not different between Est Cola and Pepsi. If you have a change to try, please tell me what different of them.