Acting Sub Lt. Jirachai Saruesee – General Manager of Operation Support Division of Thai Central Chemical Public Company Limited (TCCC), leading high quality NPK compound fertilizer producer and distributor in Thailand under OX-Brand, and volunteers form Nakhon Luang plan site held “A-Math and SUDOKU Contest No. 7”. On this occasion, There were six schools in the community interested in participating in the competition, namely, Wat Lamud School, Wat Sadet school, Wat Bandab School, Wat Ban Chung school, Wat Mapprachan School, and Wat Nakhon Luang school, in addition, the winner of A-Math is Wat Bandap school and the winner of SUDOKU is Banchung school. This activity is part of promoting the education of students in the community, which TCCC has always emphasized and supported.