Yasuichi Kaneda

Engages in the manufacture and sale of plastic molded products

Princia Co., Ltd. is a student-led nonprofit organization focused on combating light pollution worldwide to protect human health, wildlife, and the night sky. The company is based in Hong Kong, Hong Kong. The organization addresses the adverse effects of excessive artificial light, including disrupted circadian rhythms, health issues such as sleep disorders and cancer, energy waste, harm to wildlife behavior, interference with astronomy, and broader economic and environmental costs. Princia operates through advocacy, community outreach, policy development, research, and awareness campaigns, engaging a diverse, youth-driven team affiliated with institutions such as MIT and Vanderbilt University. The organization promotes stronger outdoor lighting regulations, protection of dark sky areas, investment in energy-efficient lighting, and public education.

Manufactures plastic components, synthetic resins and molds