NASC Co., Ltd. is a high-tech corporation dedicating in research, development, production and marketing on photoluminescent raw material & relating products.

Photoluminescent products are playing the new role in art, industrial and safety signs which can absorb and store the energy after excited by the soar lights, lamp and other light sources. After excited shortly by the light sources, it can emit light in the dark place more than 20 hours in the recognizable light intensity (0.32 mcd/m2).