Osamu Tsukasa

Chairman at

Shanghai Tenma Platech & Housewares Co. Ltd.

92 year

Process Industries

Producer Manufacturing

Profile

Osamu Tsukasa is currently the Chairman of Tenma Precision (Zhongshan) Co., Ltd., Shanghai Tenma Platech & Housewares Co. Ltd., Tenma Platech & Housewares (Zhongsan) Co. Ltd., Tenma Huangguan Precision Industry Suzhou Co. Ltd., and Director of Princia Co., Ltd. He previously served as the Honorary Chairman of TENMA Corp.
from 1957 to 2014 and as Chairman of Tenma Vietnam Co., Ltd.

Osamu Tsukasa active positions

Companies	Position	Start
Shanghai Tenma Platech & Housewares Co. Ltd.	Chairman	2006-03-31
Tenma Precision (Zhongshan) Co., Ltd. Tenma Precision (Zhongshan) Co., Ltd. Office Equipment/SuppliesProducer Manufacturing Manufactures office automation equipment parts	Chairman	2005-11-30
Princia Co., Ltd. Princia Co., Ltd. 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.	Director/Board Member	1994-05-31
Tenma Platech & Housewares (Zhongsan) Co. Ltd.	Chairman	1992-11-30
Tenma Huangguan Precision Industry Suzhou Co. Ltd.	Chairman	2010-08-31

All active positions of Osamu Tsukasa

Former positions of Osamu Tsukasa

Companies	Position	End
TENMA CORPORATION	Chairman	2014-06-26
Tenma Vietnam Co., Ltd. Tenma Vietnam Co., Ltd. Chemicals: SpecialtyProcess Industries Manufactures plastic components, synthetic resins and molds	Chairman	-

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Linked companies

Private companies	7
TENMA Corp. TENMA Corp. Chemicals: SpecialtyProcess Industries Engages in the manufacture and sale of plastic molded products	Process Industries
Princia Co., Ltd. Princia Co., Ltd. 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.
Tenma Precision (Zhongshan) Co., Ltd. Tenma Precision (Zhongshan) Co., Ltd. Office Equipment/SuppliesProducer Manufacturing Manufactures office automation equipment parts	Producer Manufacturing
Shanghai Tenma Platech & Housewares Co. Ltd.
Tenma Vietnam Co., Ltd. Tenma Vietnam Co., Ltd. Chemicals: SpecialtyProcess Industries Manufactures plastic components, synthetic resins and molds	Process Industries
Tenma Platech & Housewares (Zhongsan) Co. Ltd.
Tenma Huangguan Precision Industry Suzhou Co. Ltd.