In the morning of February 20, 2019, Yinchuan Ecological Environment Bureau organized the Xixia District Environmental Protection Bureau and a number of enterprises in Xixia District, totally 15 people visited EPPEN to learn the odor treatment technology and facilities. Wang Hui, deputy magistrate of Yongning County, accompanied by Director Zhang Jianxin the Environmental Protection Bureau; Wang Daping, deputy general manager of the company's Ningxia base, and Liu Liping, manager of the security environment department, accompanied the whole process.

The group visited the Fertilizer Production Workshop of the Fertilizer Production Department and the second workshop of the second production of amino acid production. The manager of the fertilizer production department, Yan Rui, and the manager of the second amino acid production, Lu Xinlong, detailed the department's odor management status and environmental protection facilities.

During the period, Deputy General Manager Wang Daping gave detailed answers to the questions raised by the visitors. The company's investment and achievements in environmental protection work have been well received by visitors. The environmental protection management has a long way to go. The company will continue to practice the environmental protection ideas of “Green water and green mountains are mountains of gold and silver” and continuously improve social benefits.