Green Tech Ventures Public Company Limited engages in electricity generation and property development in Thailand, Vietnam, and the Lao People's Democratic Republic. It also invests in, produces, and sells medical cannabis products, invests in hemp, and operates in cryptocurrency mining, water supply project investment, development, and construction, and solar power generation. The company was formerly known as United Power of Asia Public Company Limited and changed its name to Green Tech Ventures Public Company Limited in February 2023. Founded in 2000, it is headquartered in Bangkok, Thailand.