[1] The corps is stationed in Tam Điệp, Ninh Bình.

[2] On 21 October 2023, Vietnam's Defense Minister Phan Văn Giang announced the decision to merge the 1st and 2nd Corps to form the 12th Corps.

[3] On 28 November 2023, the inaugural meeting of the 12th Corps Party Committee was convened to debate the matter of assembling the subordinate units and personnel of the new corps.

[4][5] On 23 December 2023, a large-scale exercise was conducted by the newly established 12th Corps under the observation of Vietnamese Prime Minister Phạm Minh Chính.

By the end of 2023, Major General Trương Mạnh Dũng announced that the rate of combat-ready troops of the corps' units reached 95%.