主席

chairperson / premier / chairman / CL:個|个[ge4],位[wei4]

owner / master / host / individual or party concerned / God / Lord / main / to indicate or signify / trump card (in card games)

surname Xi

woven mat / seat / banquet / place in a democratic assembly / classifier for banquets, conversations etc

variant of 席[xi2] / woven mat

presidium

rostrum / platform / CL:個|个[ge4]

vice-chairperson

president (title of the head of state of China and several other nations)

Chairman Mao / Mao Zedong 毛澤東|毛泽东 (1893-1976), Chinese Communist leader

Quotations from Chairman Mao Tse-tung, published from 1964 to about 1976

party chief

chair country / country holding revolving presidency