Qualifications of 2,296 delegates to the 20th National Congress of the Communist Party of China (CPC) have been confirmed valid, a spokesperson for the congress said Saturday.

The delegates will attend the 20th CPC National Congress, representing more than 96 million CPC members and over 4.9 million primary-level Party organizations, spokesperson Sun Yeli said at a press conference.

Sun said the spectrum of the delegates is broadly representative.

The delegates come from various sectors, various administrative levels, and various institutions including Party and government departments, enterprises, public institutions and people's organizations.

More than one-third of the 2,296 delegates are Party members working on the frontline. Among them, workers or migrant workers account for 8.4 percent of all delegates, farmers 3.7 percent, and professionals and technicians 11.6 percent.

The ratio of female delegates has risen to 27 percent, Sun said, adding that ethnic minority delegates account for 11.5 percent of the total.

Sun noted that 59.7 percent of the delegates are aged under 55, and 95.4 percent of them have a diploma from junior college or above. More than half of the delegates own a master's degree.

Sun said 96.9 percent of the delegates joined the CPC after the reform and opening-up started in 1978.