According to the official schedule through June announced on the tournament's website, there are 12 events in total with two events held in two countries each month.
The new season will kick off in Thailand on January 10 and will hold its last for the first half of the year in South Korea on June 19.
China, Indonesia and the Philippines will each host two events, while Indonesia, Singapore, Japan and Malaysia host one each.
The first ONE Championship in Vietnam was held in Ho Chi Minh City last September when Muay Thai warrior Nguyen Tran Duy Nhat defeated Malaysia's Azwan Che Wil.
The event attracted a total of 28 fighters from 14 countries.
Nhat will face WMC (World Martial Arts Masterships Committee) Muay Thai champion Yuta Watanabe of Japan on November 22 in a match billed ONE: Edge of Greatness in Singapore.
ONE Championship is the number one sports media property in the continent, broadcasting matches to over 2.6 billion potential viewers in 140 countries.