Rapid Growth and Costs of Sige New Energy's Four-Year Push to IPO

From incorporation to listing on the Hong Kong Stock Exchange, Sige New Energy took only four years, potentially making it the fastest Chinese technology company to go public in Hong Kong in recent years.

On April 16, this company, founded in May 2022, will go public on the Hong Kong Stock Exchange under the stock code 6656. Its IPO market capitalization may exceed 80 billion Hong Kong dollars. The subscription multiples for the first day of financing exceeded 61 times, and so far it has reached about 815 times. The expected subscription multiple is projected to surpass 1,000 times.

What does four years mean? Most hard-tech ventures at this stage are still burning through their Series B funding to refine their next-generation products. By 2025, Sige’s revenue reached 9 billion yuan, with a net profit of 2.92 billion yuan and a gross margin of 50.1%. In 2023, these three figures were 58 million yuan, negative 373 million yuan, and 31.3%, respectively.If we only look at the growth curve, this company can be considered a miracle.。

Notably, such a growth curve emerged during a period of intense competition in the energy storage sector. Competitors’ gross margins are generally struggling between 20% and 30%, while Sige’s 50% either indicates that it has found a market position with completely different pricing power or suggests that there are certain 'strings attached' behind these figures.

From a product perspective, what Sige is doing is logically straightforward: integrating photovoltaic inverters, energy storage batteries, energy storage converters, DC charging modules, and energy management systems into a single box. This all-in-one solution eliminates the need for installers to assemble components from different brands on-site or debug protocol compatibility.

Before Sige, installing a residential energy storage system was an engineering task requiring multi-brand compatibility and on-site debugging, but Sige turned it into a consumer product that is nearly plug-and-play. Such products are also called 'stackable solar-plus-storage systems,' and by 2024 shipment volumes, Sige ranked first globally in this niche category, with a market share of 28.6%.

This product line hit a rare time window in Australia. In July 2025, the Australian government launched the 'Affordable Household Battery Scheme,' providing subsidies covering approximately 30% of home storage installation costs. Within six months, 160,000 households installed batteries. From obtaining Australian CEC certification to achieving the top monthly market share in March 2025, Sige took just six months and maintained its lead until the end of the year.By 2025, this single market alone accounted for 42.6% of Sige's revenue.。

However, despite such impressive growth curves, their operating cash flow over the past three years has remained entirely negative. Accounts receivable swelled from 360 million yuan to 3.16 billion yuan, while inventory increased from 480 million yuan to 2.14 billion yuan, leaving not a single yuan of the 2.92 billion yuan net profit converted into operating cash. This does not imply that the growth is fake; it simply means that even genuine high growth must be questioned:The fastest listing and ultra-high growth do not come free of charge—it is crucial to understand the price behind them.。

01 Apply the same approach used for mobile phones to household energy storage

A revenue growth exceeding 154 times over three years naturally invites skepticism about the authenticity of such figures. However, upon closer inspection, this growth did not come out of nowhere: the product addresses the industry’s most pressing pain points and has tapped into the most suitable market for its capabilities.

Xu Yingtong, the founder of Sige, is a highly regarded figure in the energy sector. According to publicly available information, he joined Huawei in 1999 and worked in the communications field for a decade. In 2015, he transferred to Huawei's photovoltaic division, leading Huawei’s solar inverter business to become the world’s top shipment that year. He was hailed as the core figure behind 'Huawei’s seven consecutive championships' in inverters. His team includes many veterans from the power and photovoltaic industries.

A traditional household energy storage system requires installers to piece together inverters, batteries, and energy management systems from different brands on-site, debug protocol compatibility, and spend half a day just to get the system running. This pain point is manageable domestically but becomes more pronounced abroad. Labor costs are a major expense in developed markets, and installations heavily rely on skilled labor, making it difficult for such products to scale through distribution channels.

Sige’s flagship product, SigenStor, completes the integration work of five key components at the factory, delivering installers a ready-to-install finished product. The prospectus reveals that the installation and debugging time for this product has been reduced to 15 minutes, significantly increasing the number of installations an installer can complete in a day. A modular stacking design allows users to expand capacity as needed without purchasing everything upfront, lowering the decision-making threshold for the initial purchase. For distributors, one SKU covers demand ranging from small to large households, greatly reducing inventory management complexity.

With the right product definition, channel expansion accelerates significantly. SigenStor’s shipments grew from 18 MWh to 447 MWh and then to 3,947 MWh, while its distributors expanded from zero to 26, then to 92, and finally to 172. More noteworthy than the speed of expansion is the change in attrition rates: in 2024, 14 distributors were terminated, resulting in a 53.8% attrition rate, marking an intense round of channel filtering;In 2025, only nine distributors were terminated, reducing the attrition rate to 9.8%。

The ability to screen distributors in unfamiliar overseas markets indicates that the company has established a channel filtering mechanism when dealing with downstream customers. Channels have evolved from 'everyone wants to try their luck' to 'those who stay can make money.' Downstream installers expanded from 27 to 4,887 and then to 17,614, with the end-user service network gradually expanding. By 2025, distributor revenue accounted for 97.9%, making this channel system the absolute backbone of Sige’s income.

Feeding this channel system is not only the product positioning but also proactive pricing strategies. The average product price dropped from 3.17 yuan/Wh to 2.12 yuan/Wh, a 33% decrease over two years. The company actively lowered prices to boost volume, combined with an increase in high-capacity configurations that further reduced the per-watt-hour price.

Another noteworthy product feature is,All SigenStor devices must be registered online to unlock full functionality and a ten-year warranty.The deeper significance of this design lies not in sales but in after-sales: every activated device becomes a continuously online data node, paving the way for subsequent software monetization.

It's not hard to see that Huawei's series of product positioning and operational strategies for consumer-end products like smartphones and cars, including online registration, integrated products, and distributor systems, have been successfully adopted by Sigen for their residential storage devices, becoming the key to their rapid revenue growth and expansion.

Of course, while this strategy has proven effective, it’s important to remain clear about its limitations. InfoLink’s full-year 2025 data shows that global residential energy storage system shipments reached 35.11 GWh, with Sigen ranking fifth globally at approximately 3.95 GWh. Ahead of them areTesla, Huawei, BYD, and Sungrow,all giants far surpassing Sigen in scale and channel depth.

The "global leader" claim emphasized in Sigen’s prospectus is qualified by the niche category of "stackable distributed solar-storage all-in-one machines." Whether the five-in-one integrated machine will become the mainstream form of residential storage remains uncertain, but the product architecture itself does not constitute a patent barrier and can theoretically be replicated. GoodWe’s ESA series launched in 2025 serves as a direct example, with multiple independent Australian review agencies pointing out after comparison thatthe two products are highly similar in appearance, module specifications, and internal architecture.。

Currently, no further information regarding Sigen and GoodWe can be found through public channels, but regardless, competition from rivals has already begun. The key question determining Sigen’s post-IPO performance is actually the sustainability of their entire business system.

02 The Cost of Growth

Growth has emerged, but questions surrounding the sustainability of the company's performance have also surfaced, most visibly in gross margin.

SigenStor’s gross margin improved significantly from 32.2% to 50.8%; however, with lithium carbonate prices rebounding in the second half of 2025 and stabilizing around 150,000 yuan per ton since 2026, upstream cell manufacturers have been operating on thin profits. Accumulating pressure will depend on supply and demand dynamics, which may not be linear, but regardless,costs could face pressure.。

At the same time, there is no easing of pressure on the pricing front: average product prices continue to decline. The prospectus reveals tiered rebates typically below 10% of the annual procurement amount, though the rebate percentage increases with higher procurement tiers.

Moreover, the profits Sige reports have yet to turn into cash. In 2025, the company reported a net profit of 2.92 billion yuan, while operating cash flow was negative at 200 million yuan. Breaking it down shows that the issue isn’t with the profit itself—accounts receivable increased by 2.89 billion yuan and inventory rose by 1.66 billion yuan.Together, these absorbed a total of 3.51 billion yuan.。

Cash is stuck at both ends of the supply chain: payment terms for downstream customers are lengthening, with days sales outstanding stretching from 51 days to 70 days, while supplier payment terms compressed from 111 days to 61 days.Squeezed by both upstream and downstream, the 2.9 billion yuan in profit turned negative on the cash flow statement.And this only accounts for what has already occurred; provisions jumped from 1.23 million yuan to 264 million yuan, an increase of over 200 times. If these provisions are for warranties, the earliest batch of equipment was delivered in 2023, meaning they’ve only been in operation for about three years—real after-sales costs likely haven't hit yet.

With relatively limited operating cash generation capability, bank loans played a major role. By the end of 2025, the company had 1.12 billion yuan in cash, but interest-bearing bank borrowings ballooned from 390 million yuan to 1.72 billion yuan, mostly short-term loans. The company has flipped from a net cash position to a net debt of 550 million yuan. Adding in 1.16 billion yuan in trade payables owed to suppliers, Sige’s working capital is propped up by accounts receivable supporting assets, while borrowings sustain its cash position.

The market that consumes the most cash is precisely where the highest risks are concentrated. The prospectus shows that Australia contributed 15.4% of revenue in 2024, and by March 2025, Sigen achieved the top monthly market share in Australia, all before the large-scale subsidy program was launched.

Growth further accelerated after the Australian federal government initiated the 'Affordable Home Battery Program' in July 2025. According to disclosures from the Australian Department of Energy, 160,000 households installed batteries within six months. By the end of 2025, Australia's revenue contribution jumped from 15.4% to 42.6%. In December 2025, the government expanded the budget from 2.3 billion AUD to 7.2 billion AUD, aiming for 2 million Australian households to install batteries by 2030.

However, the subsidy structure is changing. According to an update from the Australian Department of Energy in February 2026, starting May 2026, subsidies will decrease on a tiered basis depending on battery capacity: 0-14kWh will retain full subsidies, 14-28kWh will receive a 60% discount, and 28-50kWh will only get 15%. Sigen focuses on stackable high-capacity systems, with modular design as its key selling point encouraging users to expand capacity, but the new subsidy structure significantly reduces support for capacities above 14kWh.

In November 2025, Sigen initiated a voluntary product recall for certain models of SigenStor, coordinated and announced by the ACCC, due to overheating risks with AC plugs. Despite the recall, Sigen maintained its leading market share in Australia, but the combination of subsidy adjustments and brand trust challenges has somewhat weakened the stability of its position, given the 42.6% concentration in a single market.

Support for gross margins is weakening, profits have not yet turned into cash, and the largest market is undergoing subsidy adjustments and brand recovery. These are not isolated risk points; they represent different facets of the same high-growth model.

03Conclusion

There is one small detail mentioned briefly in the prospectus that was not elaborated upon in the main text. As previously noted, all SigenStor devices must be registered online to unlock full functionality and warranty. If this is only seen as a product feature, its potential value is underestimated.

By the end of 2025, Sigen had sold nearly 4GWh of SigenStor units, each acting as a continuously connected data terminal. Cloud-based BMS monitors battery health status in real-time, API connects with dynamic electricity pricing from over 60 power companies across more than 20 countries, and the system supports integration with VPP providers.This means that Sigen holds an expanding distributed energy network, with each device sold adding another node to this network.。

The prospectus remains cautious in describing this aspect, using the phrase 'exploring new monetization models for the intelligent mySigen App.' Translated, this means: the infrastructure is laid out, but monetization still needs exploration. Potential monetization paths are not hard to imagine: energy dispatching fees, power trading facilitation, and other value-added services. Comparable business models exist in the energy internet sector; the question is whether Sigen's scale of terminals and user stickiness are sufficient to support it.

This raises the core valuation divergence around Sigen: Is it a hardware company, or an early-stage distributed energy network?

From the perspective of hardware companies, a 50% gross margin is the result of a price reduction window for battery cells combined with early pricing power in the product category. Both conditions are changing, and the sustainability of profits serves as the valuation anchor. However, this anchor is currently under pressure from cost rebounds, cash flow mismatches, and rising market concentration. From the energy network perspective, every sale of a SigenStor unit lays another section of pipeline. The more equipment sold, the stronger the foundation for future software monetization.

On April 16, Sigen officially began trading on the Hong Kong Stock Exchange. How to value this company's assets will be answered through market actions. $SIGENERGY (06656.HK)$$BYD COMPANY (01211.HK)$$Sungrow Power Supply (300274.SZ)$

Disclaimer: This article is intended for learning and communication purposes only and does not constitute investment advice.

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