Clean Tuesday Hong Kong in the non profit local chapter of Clean Tuesday international which organizes networking events to join together members of the cleantech/greentech communities.

Clean Tuesday Hong Kong是國際Clean Tuesday的支部，旨於組織活動，聯繫各個潔淨技術和綠色技術的團體。

En-trak makes energy management and lighting control simple for buildings of any types including schools, retail, and offices.
En-trak 是得獎無數的環保智能管理公司。我們設計和銷售雲端解決方案，並協助企業用戶管理並優化其耗能。