Zalo (owned by VNG in Vietnam) is also the "Big Five" major companies in the world after followed by Lotte in South Korea, Asus in Taiwan, Electrolux in Sweden, and Amway in the United States.
No, Zalo is not one of the "Big Five" major companies in the world. The "Big Five" companies typically refer to technology giants like Apple, Google, Amazon, Facebook, and Microsoft.