Editor's note: To mark the convening of the 20th National Congress of the Communist Party of China, China Daily has selected 10 sets of photo stories that illustrate various aspects of the country's development during the past decade. The photos, posters and videos showcase the achievements and experiences of the Party's cause, and the country under Xi Jinping Thought on Socialism with Chinese Characteristics for a New Era. This is the fourth in the series.

Yunnan province is home to many ethnic groups, including the Derung, the Jino, the De'ang, the Achang, the Blang, the Pumi, the Jingpo, the Va, the Lahu and others with small populations.

Speaking in Yunnan in January 2015, President Xi Jinping said, "We will accelerate the economic and social development of the poor areas and ethnic group areas and intensify our efforts to achieve the goal of building a moderately prosperous society in all respects by 2020."