- May 1973: Establishment of Quang Tri Grocery & Foodstuff Agency
- 1974: Upgrading into Quang Tri Grocery & Foodstuff Company
- 1977: Establishment of Dong Ha Trade Company
- 1992: Establishment of Quang Tri General Trade Company
- January 1993: Emerging the two companies: Dong Ha Trade Company and Quang Tri General Trade Company, establishment of Trading Company of Quang Tri
- April 1995: Establishment of Branch of Quang Tri Trading One Member Limited Company in Ho Chi Minh City
- November 1999: Establishment of Branch of Trading Company of Quang Tri in Lao Bao Special Commercial Economic Zone
- December 2003: Establishment of Branch of Quang Tri Trading One Member Limited Company - Viet Lao Trade Enterprise
- March 2004: Establishment of Branch of Quang Tri Trading One Member Limited Company - Huong Hoa Tapioca Starch Factory
- 21st March 2004: Successful manufacture of tapioca starch product with SEPON brand
- July 2004: Establishment of Branch of Quang Tri Trading One Member Limited Company - SEPON Hotel
- June 2006: Establishment of Branch of Quang Tri Trading One Member Limited Company - SEPON Travel Agency
- October 2006: Changing into Quang Tri Trading One Member Limited Company
- July 2008: Establishment of A Tuc Trade Centre
- September 2008: Establishment of Hung Vuong Trade & Service Centre
- 2009: Building Lang Vay Service Centre
- February 2009: Establishment of Branch of Quang Tri Trading One Member Limited Company in An Giang
- April 2009: Establishment of SEPON travel Joint Stock Company
- January 2010: Starting building Dong Ha Coopmart Supermarket - a joint-venture construction of Quang Tri Trading One Member Limited Company and Ho Chi Minh City Union of commercial cooperatives (SAIGON COOP)
- March 2010: Establishment Experimental Agriculture Centre
- April 2011: Establishment of Branch of Quang Tri Trading One Member Limited Company - Dong Ha Agricultural processing Factory
- August 2012: Establishment of Branch of Quang Tri Trading One Member Limited Company - Cam Lo rubber latex processing Factory
- May, 2014: Establishment of Branch of Quang Tri Trading One Member Limited Company - Cam Lo wood pellet factory
- December 2014:Tranfering Quang Tri Trading One Member Limited Company to Quang Tri Trading Corporation.
- April 2015: Establishment of Branch Quang Tri Trading Corporation - SEPON boutique resort.
- On November 16, 2016, the State Securities Commission approved Quang Tri Trading Corporation officially became a public company.
- On February 6, 2017, the Company's shares were officially listed on the Vietnam stock market with stock code: SEP