ZTO Express Co, one of Alibaba Group Holding Ltd's logistic partners, is aiming to list as early as September, in what will be the second-biggest initial public offering by a Chinese firm in the United States, according to a report.

The Shanghai-based logistics company has submitted a filing in New York for the IPO, aiming to raise up to $2 billion, International Financing Review reported on Tuesday.

ZTO Express declined to comment on the report when contacted by China Daily.