BEST partner “State Autonomus Institution of Kaliningrad region, ECAT-Kaliningrad” arranged a capacity-building seminar for the local stakeholders covering issues related to the industrial sewage treatment at the municipal waste water treatment plants in May 31 in Kaliningrad, Russia. The event was a success, altogether 70 people participated. Waste water treatment plant and industrial personnel and environmental authorities and experts heard about the co-operation practices and regulations in the industrial sewage treatment, examples of well-established waste water treatment at industries, and new available technologies for the industrial waste water treatment. During the event, ECAT Kaliningrad was able to gather information about the current state of the industrial waste water treatment in the area as well as major challenges and needs for information/capacity building/investments in the area.