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

WASHINGTON (Reuters) - Chinese President Hu Jintao arrived 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 events on his itinerary:

TUESDAY, JAN. 18

Hu attended a private dinner with U.S. President Barack Obama at the White House.

WEDNESDAY, JAN. 19

9 a.m. EST (1400 GMT)

-- Arrival ceremony on the South Lawn at the White House

10 a.m. EST (1500 GMT)

-- Obama holds bilateral meeting with Hu in the Oval Office at the White House. U.S. Vice President Joe Biden also attends.

11 a.m. EST (1600 GMT)

Obama holds expanded bilateral meeting with Hu and official U.S. and official Chinese delegations in the White House Cabinet Room.

12:20 p.m. EST (1720 GMT)

Obama and Hu hold a meeting with business leaders at the Eisenhower Executive Office Building, next to the White House.

1:05 p.m. EST (1805 GMT)

Obama and Hu hold a joint press conference in the East Room at the White House

2:30 p.m. EST (1930 GMT)

Biden, his wife Jill Biden and Secretary of State Hillary Clinton host lunch in Hu's honor at the State Department.

6 p.m. EST (2300 GMT)

Obama and first lady Michelle Obama welcome Hu for 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.

-- Hu departs for Chicago.

-- Arrives Chicago in late afternoon.

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

FRIDAY, JAN. 21

-- Hu visits Walter Payton College Prep high school for an event aimed at highlighting cultural ties

-- Brief ceremony for US-China contracts signing.

-- Departs Chicago later in the day, ending U.S. visit.

(Reporting by Patricia Zengerle, Caren Bohan, Paul Eckert and Chris Buckley)