Factbox: Details of Hu's U.S. visit

WASHINGTON (Reuters) - Chinese President Hu Jintao arrives in the United States on Tuesday for a four-day visit, with the centerpiece of the trip a formal state visit on January 19 at the White House.

Here are the key events on his itinerary:

TUESDAY, JAN. 18

Hu arrives late in the day and attends private dinner with U.S. President Barack Obama at the White House.

WEDNESDAY, JAN. 19

Morning:

-- Arrival ceremony on the South Lawn

Late morning:

-- Series of bilateral meetings at the White House; Obama and Hu will also drop by a meeting of Chinese and U.S. business executives

-- Joint press conference with Obama in White House East Room

Afternoon:

Luncheon at U.S. State Department hosted by U.S. Vice President Joe Biden and his wife, Jill

Evening:

Formal State Dinner at the White House

THURSDAY, JAN. 20

-- Hu visits Capitol Hill for meeting with Republican and Democratic congressional leaders, including heads and ranking members of key committees.

-- Hu delivers address at U.S.-China Business Council

-- Departs for Chicago.

-- Attends dinner hosted by Chicago Mayor Richard Daley in evening.

FRIDAY, JAN. 21

Hu has events in Chicago, including visit to a Chinese-owned auto parts plant. He departs later in the day, ending his U.S. trip

(Reporting Caren Bohan, Paul Eckert and Chris Buckley; Editing by Sandra Maler)