Liu Qiangdong, CEO of Chinese e-commerce company JD.com, will not face sexual assault after his arrest in the US in September.
Prosecutors said they had not found enough evidence to charge Liu after he was accused of raping a Chinese student at the University of Minnesota.
He denied wrongdoing and was released less than a day later to return to China.
JD.com is one of China's largest e-commerce sites.
"As is the case in many sexual assault events, it was a complicated situation," said lawyer Hennepin County Mike Freeman in a statement.
The county said there were "in-depth evidence problems" that would have provided evidence of the claims in court "very unlikely".
- JD.com leader Liu & # 39; was accused of rape & # 39;
Liu, 45, took courses at the University's Carlson School of Management when the allegations were made.
He and a group of friends went to a meal on August 30, when the young woman also attended.
Police were called to a friend of the woman at the beginning of August 31, and Liu was arrested the following day.
Evidence from body cameras carried by officials, however, "does not support criminal charges in this case," the statement said.
"It had nothing to do with Liu's status as a wealthy foreign businessman," it added.
According to Forbes, Mr Liu currently has a net worth of $ 5.3 billion. Kr. (DKK 4.2 billion).
His arrest caused shock in China, where people speculated on social media that Liu had been created.
The company has faced the latest problems and announced in November that customers' customers had shrunk for the first time since 2014.
Its shares hit an 18 month low week after his arrest.