The Happy Heart Committee at the Lopburi factory organized a special event in celebration of Valentine's Day 2025, held from February 10–14, 2025, at Canteens 1 and 2. The event featured a lucky star prize draw and a gift shop sale, with a portion of the proceeds donated to underprivileged schools. Additionally, the "NMB Ambassador Lopburi 2025" contest was held to promote happiness among staff and to select a representative to carry out various missions on behalf of the company and for the benefit of society.