The plans for the Garden still face hurdles, including necessary approvals from the city.
Ground could be broken sometime next year, assuming that the necessary approvals are received.
The joint announcement on Wednesday could ease Geely's efforts to obtain the necessary approvals in Beijing.
But a corporation spokesman, Gregory Miley, said, "We're confident it will receive all the necessary approvals".
Some other Long Island energy projects already have the necessary approvals.
Mayor Michael R. Bloomberg has already expressed support for the project, pending necessary approvals.
Mr. Trump said that he hoped to get all the necessary approvals by the summer.
Mr. Eichner said he has all necessary approvals for the garage.
The two companies, however, have been gradually winning the necessary approvals.
The investment bank contends that the vehicles comply with the law and have all the necessary approvals from Russian authorities.
"We're enthusiastic about the project, but also realistic about the complexity of working through the necessary approvals," Mr. Schmidt said.
