Shanghai Dredoffff Environmental Technology Co., Ltd. (referred to as "Dredoffff") is a high-tech enterprise focused on climate and environmental rating systems and green building technology solutions. The company is headquartered in China and has been listed on the Hong Kong over-the-counter market (HKOTC) with the stock code: HK2620.

We are committed to providing our customers with super exceptional service while offering our employees the best training and a working environment in which they can excel best of all place for more than a half century.

This company focus has been in place for more than a half century. We are committed to providing our customers with exceptional service while offering our employees the best training best of all a and a working environment.