Iljin Hysolus

Iljin HySolus, founded in 2012 and listed on the KOSPI in 2021 as an affiliate of the Iljin Group, operates through two divisions: a hydrogen business unit that manufactures and sells Type 4 hydrogen tanks for vehicles, and an environmental business unit that produces diesel particulate filters (DPF).

Hydrogen tanks are classified into Types 1 through 4 by construction method, and the company was the world's first to mass-produce Type 4 tanks, which use a carbon-fiber shell with a non-metallic liner and represent the most technically demanding design.

Starting with Hyundai's Tucson FCEV in 2014, the company has exclusively supplied hydrogen tanks for Hyundai's Nexo since 2018, and it remains the sole supplier for the second-generation Nexo launched in 2025.

As of the third quarter of 2025, revenue mix consisted of 57.79% commercial hydrogen tanks, 36.88% passenger hydrogen tanks, and 3.33% environmental business, with commercial vehicles now surpassing passenger vehicles.

In the competitive landscape, only a handful of companies—Japan's Toyoda Gosei and Norway's Hexagon Purus—possess Type 4 mass-production technology, while OPmobility and FORVIA are attempting to enter the market.

The company has also entered the hydrogen transport equipment market with Korea's first certified Type 4 (450 bar) hydrogen tube trailer, and is reportedly developing a next-generation 525 bar trailer.

It has begun diversifying customers by supplying small volumes to overseas automakers such as BMW's iX5 Hydrogen, and in March 2026 established an overseas subsidiary in Frankfurt, Germany to expand into the European market.

Production is centered on its Wanju plant in North Jeolla Province, where the company is pursuing capacity expansion dedicated to commercial vehicles in line with government policy to expand hydrogen bus adoption.

Iljin HySolus' annual revenue grew for three consecutive years, from KRW 78.74 billion in 2023 to KRW 79.30 billion in 2024 and KRW 81.59 billion in 2025, while the operating loss actually widened over the same period, from KRW 9.80 billion in 2023 to KRW 9.52 billion in 2024 and KRW 11.20 billion in 2025.

Compared with 2022, when the company posted an operating profit of KRW 2.77 billion on revenue of KRW 109.08 billion, the top line has yet to fully recover to that scale while profitability remains well below that level.

Net income also declined from KRW 7.04 billion in 2022 to KRW 1.41 billion in 2023 and KRW 1.82 billion in 2024, before turning to a net loss of KRW 2.00 billion in 2025.

According to FnGuide, on a cumulative basis through the third quarter of 2025, revenue rose 9.7% year-on-year while the operating loss expanded 72.5% and net income turned negative.

By quarter, revenue was KRW 18.33 billion in Q2 2025 with an operating loss of KRW 2.77 billion and a net loss of KRW 0.47 billion, before the loss narrowed in Q4 2025 to revenue of KRW 24.20 billion and an operating loss of KRW 0.97 billion, with net income turning positive at KRW 1.00 billion.

In 2026, Q1 revenue was KRW 27.12 billion with an operating loss of KRW 2.03 billion and a net loss of KRW 0.05 billion, while Q2 revenue reached KRW 25.88 billion with a narrower operating loss of KRW 0.65 billion and net income of KRW 0.97 billion.

This divergence between operating results and net results across quarters suggests that non-operating items have a meaningful influence on the bottom line. Individual Q3 2025 figures were not available due to a disclosure data gap, so cumulative and annual metrics were used for interpretation instead.

The hydrogen vehicle market has grown more slowly than the government's roadmap due to insufficient charging infrastructure and a lack of price competitiveness, but signs of recovery in passenger vehicle demand have emerged with the 2025 launch of the second-generation Nexo.

The commercial vehicle segment (buses and trucks), by contrast, has expanded more structurally with policy support, given hydrogen's clear advantages over electric vehicles for long-distance and heavy-load transport; indeed, the commercial segment overtook the passenger segment in revenue mix in the third quarter of 2025.

The government continues to pursue policies expanding hydrogen bus adoption, and fuel subsidies for hydrogen trucks have been raised, supporting growth in the commercial vehicle segment.

The Hyundai Motor Group has moved to expand green hydrogen production capacity through a large-scale investment in Saemangeum, forming a backdrop for medium- to long-term expansion of hydrogen mobility infrastructure.

In terms of competitive positioning, only a handful of companies worldwide possess Type 4 hydrogen tank mass-production technology, giving Iljin HySolus the benefit of a technological barrier to entry, though a Toyota affiliate, Norway's Hexagon Purus, and later entrants such as OPmobility and FORVIA continue attempting to enter the market.

FnGuide noted that sustained market share and sales momentum for Hyundai's fuel cell vehicles could support earnings improvement, and that expansion of hydrogen refueling stations and commercial vehicle infrastructure through 2040 points to continued growth in the hydrogen mobility market.

In Europe, automakers such as BMW are pursuing hydrogen vehicle development, while China established Type 4 hydrogen tank standards in 2024, putting its market at an early formative stage.

In response to the government's hydrogen bus expansion policy, Iljin HySolus is focused on expanding dedicated commercial-vehicle production capacity at its Wanju plant and building out a quality enhancement system.

The second-generation Nexo reportedly offers improved driving range over the first generation, making early sales trends and demand shifts tied to expanded tank capacity a variable to watch for future earnings.

In March 2026, the company established an overseas subsidiary in Frankfurt, Germany, building partnerships with European engineering firms as part of a strategy to reduce dependence on Hyundai and broaden its global customer base.

The company is also reportedly developing a next-generation 525 bar tube trailer following its domestically first-certified Type 4 tube trailer, making expansion into hydrogen transport equipment another area to monitor.

In March 2026, the CEO position changed to new representative director Lim Man-gyu, with changes also made to the composition of inside and outside directors, warranting attention to the direction of future management strategy going forward.

The company has also been updating contract terms with major customers through amended single sales supply agreement disclosures, which could serve as reference points for revenue visibility if further order-related disclosures follow.