Chinese energy storage firm Sigenergy has ignited a market frenzy with its initial public offering (IPO) plan in Hong Kong, drawing an oversubscription of over 1,000 times, while its listed peer Guoxia Technology enjoyed a rally, as the duo capitalise on the artificial intelligence boom.

Shanghai-based Sigenergy, which aims to raise HK$4.4 billion (US$561.6 million) in its IPO, is expected to be 1,414 times oversubscribed, as retail investors borrowed HK$358.6 billion from 17 brokerages, according to data tracked by Futu Securities. The company is expected to start trading on Thursday.

The investor excitement extended to Hong Kong-listed firm Guoxia, whose shares surged nearly 15 per cent to close at HK$63.45 on Wednesday.

What is Sigenergy, and why did it attract such investor interest?

Sigenergy was founded in 2022 by former Huawei Technologies executive Xu Yingtong, who was with the company for 23 years and more recently led the tech giant’s photovoltaic and AI computing businesses. Sigenergy is focused on stackable distributed energy storage system (DESS) solutions that enable homes and businesses to generate, store and charge solar power, primarily in residential uses.

Within two years of its establishment, Sigenergy became the world’s largest player in the niche market of stackable DESS with a 28.6 per cent market share, according to the company’s prospectus, citing data from research firm Frost & Sullivan.