On March 5, 2019, Yang Yi and Tian Gaofeng, respectively Chief Engineer and Equipment Division Director of Kangda Shangqiu, visited Kangda Xinzheng. They paid a visit to Zhengzhou Xinzhongzhou First and Second Sewage Treatment Plants and Xinzheng Xinkang Xuedian Sewage Treatment Plant, giving instructions and convening a meeting on maintenance. The exchange meeting was also attended by Gao Yantao and Li Guanghui, deputy heads of Kangda Xinzheng, as well as representatives of maintenance teams and operations department.

At the meeting, Chief Engineer Yang Yi praised the work of Xinzheng company's leaders and maintenance teams, presided over the discussion on maintenance difficulties facing the four water plants under the company, and advised on concrete details.

The maintenance meeting concluded with every participant benefited a lot. Yang Yi also stressed that to do a good job in maintenance, we need to pay more attention and make more efforts in observation and maintenance. As he said, maintenance is largely a physical work. That requires rich experience and also professionalism and responsibility.