pinganxianIntroduction：Introduction to Ping An: Ping'an County, formerly the capital of Haidong District, is an important political, economic, cultural, transportation, science and technology and education center in the eastern part of Qinghai. It is known as the “Selenium Capital” of the Qinghai-Tibet Plateau. Pingan County. It is adjacent to the Ledu District of Haidong Municipal Party Committee and Municipal Government, the Yuzhong County and Xining City to the west, the Hualong County to the south, and the Lishui County to the north. As of 2013, Ping'an County has jurisdiction over 3 towns and 5 ethnic townships, with 769 square kilometers and 127,515 people, mainly Han people, as well as Hui, Tibetan, and other ethnic minorities. In 2008, Ping An County achieved a total production value of 1.927 billion yuan, a year-on-year increase of 14.01%.