History
1976 - United Thai Shipping Corp Ltd established to serve the government's vision in founding a "Thai national flag carrier".
1987 - Unithai line Plc Ltd established to run liner trade linking Thailand and Western Europe, South and West Africa, the Middle East and North Asia.
1990 - Unithai Shipyard and Engineering Ltd established at the Laem Chabang Deep Sea Port.
1994 - Unithai forms joint ventures with Sojitz Logistics Corp and Maruzen Showa Unyu Co Ltd to establish United Thai Logistics Co Ltd and United Thai Warehouse Co Ltd.
1995 - Unithai Container Terminal established in Samut Prakhan province and commences operations in 1997.
1999 - Joined forces with SDV France to establish SDV Logistics (Thailand) Co Ltd to provide International Freight Forwarding Service.
- Uniwise Offshore Ltd created by joint venture with the Denmark-based CUIG (SvitzerWijsmuller AP Moller Group), to provide crew-boat services to the oil and gas industry in Thailand.
2000 - Unithai's Offshore Division, through CUEL, established to provide a complete range of services for offshore facilities.
2005 - Unigreen Agencies established to represent the general agents in Thailand of one of Korea's largest shipping lines – STX Pan Ocean Co Ltd.
2006 - Uniwise Offshore splits into two joint ventures
• Uniwise Towage Ltd is a joint venture with Wijsmuller Marine Services,
operating Multi-Purpose Offshore Terminal Tugs(MOTTs) and a utility line boat.
• Uniwise Offshore Ltd is a joint venture with Express Offshore Transport,
operating Thailand's largest crew-boat fleet.
2008 - Unithai formed a joint venture with Maruzen Showa Unyu, Tan Cang – Song Than ICD Ltd, Transport and Chartering Corporation and Viet Business to establish Unithai Logistics (Vietnam) Corp, in Ho Chi Minh City.
2011 - Uniwise Offshore is the first contractor to provide AHTS to Chevron.
2014 - Unithai forms joint venture with Chin Corp Myanmar to establish Unithai Chin Corp Logistics (Myanmar) Ltd.