Chinese mainland electric-vehicle maker Seres Group is seeking to raise as much as HK$13.18 billion ($1.7 billion) in a Hong Kong Special Administrative Region listing, according to a filing with the exchange made on Monday.

The company is offering 100.2 million H shares under listing, for a maximum offer price of HK$131.50 apiece.

The offering has drawn 22 cornerstone investors committing about $826.5 million, or nearly 49 percent of the base deal size, at the top of the price range.

The largest commitment comes from Chongqing Industrial Parent Fund, which pledged around HK$2.18 billion, alongside other investors including Schroders, Mirae Asset, Jump Trading and China MeiDong.

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The retail offering runs from Oct 27 to Oct 31, with pricing expected on or before Nov 3 and trading set to begin on Nov 5.

China International Capital Corp and China Galaxy International are joint sponsors of the Hong Kong listing. The listing highlights Hong Kong’s return as the leading offshore fundraising hub for firms.