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Dong Nai Department of Education and Training's official science and engineering research fair for Grade 8–12 students exam, held on 6–8 January 2027 (planned).
Organised by the Dong Nai Department of Education and Training (plan 6611/KH-SGDĐT, 23 October 2026). Subjects: research projects in the 16 fields set by Circular 84/2026/TT-BGDĐT. Each upper-secondary school, vocational/continuing-education centre and each commune (for lower-secondary projects) is an entry unit. Final: poster and product display, presentation and judge interview; the best projects go to the 2026–27 national fair.