SHANGHAI — By all accounts, the United States would have been a no-show at the Shanghai Expo had Secretary of State Hillary Rodham Clinton not opened her Rolodex and raised about $60 million in private cash to finance a pavilion here. So it seemed fair that Mrs. Clinton got a rousing cheer from a group of Chinese children when she visited the building on Saturday.

But the house that Hillary built is unmistakably the house that corporate America paid for.

After touring the pavilion — with its Citibank- and Pfizer-sponsored theaters, gauzy eight-minute videos featuring representatives from Chevron, General Electric, and Johnson & Johnson, environmentally friendly features sponsored by Alcoa, and a gift shop with licensed merchandise from Disney — Mrs. Clinton seemed less inspired than relieved that the project was done.

“It’s fine,” she said to a reporter asking her what she thought of the pavilion. “Can you imagine if we had not been here?”

With its gunmetal-gray walls and convention-center aesthetics, the pavilion hardly stands out in a fairground studded by beguiling structures like Britain’s Seed Cathedral, a cube with 60,000 sprouting transparent rods that make it look like a dandelion ready to be scattered to the winds.