HiTHIUM in Hong Kong: Drive of R&D Expansion
HiTHIUM made its mark at the fourth Hong Kong International Innovation and Technology Expo (InnoEX), held at the Hong Kong Convention and Exhibition Centre in April 2026. The company brought two of its frontier achievements to the floor: the ∞Cell 1175Ah long-duration energy storage cell and the ∞Power 6.25MWh long-duration energy storage system. It also stood out for a structural reason that HiTHIUM was the only energy storage enterprise from Fujian Province invited to the event, attending under the joint invitation of the Fujian Provincial Department of Science and Technology and the Hong Kong Trade Development Council.
The booth drew the expected stream of delegates and buyers. The wider signal, however, was strategic. HiTHIUM’s appearance at InnoEX was not only a product showcase but a statement of intent — positioning Hong Kong as the international node through which the company intends to accelerate its global build-out.
A Stage for Long-Duration Energy Storage
Co-organized by Hong Kong’s Innovation, Technology and Industry Bureau and the HKTDC, InnoEX is widely regarded as Asia-Pacific’s barometer for emerging technology. The 2026 edition centered on AI applications, robotics, the low-altitude economy, and new energy. For storage manufacturers, it offered something that pure trade shows do not: direct proximity to capital, policymakers, and research institutions in a single venue.
HiTHIUM used the platform to anchor a single thesis — long-duration energy storage unlocks a new future. The product line-up was built around that argument.
- Large-Cell Dual Engine
At the cell level, HiTHIUM presented its large-cell dual-engine: the ∞Cell 1175Ah for ultra-long-duration applications and the ∞Cell 587Ah for utility deployments. Both cells share the same design philosophy — higher single-cell capacity to compress system complexity downstream. The 1175Ah extends discharge windows further than current industry norms, while the 587Ah covers the bulk of mainstream utility-scale projects already in deployment.
- Fewer Cells, Lower LCOS
That compression carries through to the system tier. The ∞Power 6.25MWh system, built on the in-house ∞Pack+ platform and configurable for 2-hour or 4-hour discharge, allows a 1 GWh project to reduce its total cell count by roughly 70%. Fewer cells mean fewer interconnects, fewer failure points, and a meaningfully lower levelized cost of storage (LCOS) over the asset’s life. For developers running the numbers across a 20-year project, the savings compound across O&M, footprint, and balance-of-plant costs.
- Safety and Longevity in One Frame
Safety and longevity were treated as a single problem rather than two. HiTHIUM highlighted its thermal-propagation-resistant cell architecture across the lithium product line, alongside a parallel sodium-ion roadmap. The ∞Cell N162Ah sodium-ion battery, rated at 20,000 cycles with a wider temperature tolerance, addresses environments where lithium chemistry struggles on cost or climate. The dual-chemistry approach signals that HiTHIUM is treating long-duration storage as a problem to be solved with the right tool for each context, rather than a single chemistry forced across all markets.
- Two Pain Points, One Answer
These technologies map directly onto two of the most pressing pain points in the current grid landscape. AI data centers are pushing baseload electricity demand to levels grid operators were not planning for a decade ago, while wind and solar curtailment continues to grow in markets where renewables have outpaced grid flexibility. HiTHIUM’s long-duration storage answers both — absorbing curtailed generation and dispatching it across the multi-hour windows that AI workloads now require.
Hong Kong as a Twin-Lever Play
Behind the booth was a larger move already in motion. In late 2025, HiTHIUM CEO Jason Wang attended the grand opening of the Hong Kong Park of the Hetao Shenzhen-Hong Kong Science and Technology Innovation Co-operation Zone and announced the establishment of HiTHIUM’s Hong Kong International R&D Center within the park; within months, the company formally entered the park in April 2026.
- The Geographic Logic
Hong Kong sits at the intersection of mainland China’s manufacturing and supply-chain depth, and the international research and capital networks that long-duration storage development requires. The Hetao zone, separated from Shenzhen only by a river, gives HiTHIUM access to the supply chain density of the Greater Bay Area while operating within Hong Kong’s regulatory and institutional environment. The “one river, two banks” arrangement is the practical expression of Hong Kong’s super-connector role: efficient communication with the mainland, full visibility into international markets.
- A Lab for Long-Duration and Sodium
The research focus reinforces this positioning. The Hong Kong International R&D Center will concentrate on applied research and validation in long-duration energy storage and sodium-ion battery technology — areas where Hong Kong’s concentration of world-class universities and international research partners can contribute most. These are not incremental product lines; they are the technologies on which the next decade of grid storage will be built. Locating that R&D in Hong Kong places technologies held by HiTHIUM alongside a dense network of world-class universities and international research partners, opening up academic collaborations that the city is uniquely positioned to convene.
- From Product Export to Dual-Drive Model
Together, the R&D center signal a clear strategic upgrade. HiTHIUM’s earlier overseas push was led by product — cells and systems sold into European, Middle Eastern, and North American markets. The Hong Kong move adds two new layers on top of that base: a research arm embedded in an international innovation ecosystem. The result is a dual-drive model where technology development and international capital reinforce one another, and where HiTHIUM’s brand sits closer to where global storage decisions are being made.
For energy storage companies entering this decade, two questions increasingly decide who scales and who stalls: where technology development happens, and where capital is raised. HiTHIUM’s Hong Kong moves are an attempt to answer both in the same place, anchored to the same city.
About HiTHIUM: From a Xiamen Start-Up to a Global Player
HiTHIUM was established in Xiamen in December 2019. Among manufacturers shipping at GWh-scale in lithium-ion energy storage, HiTHIUM remains the only company exclusively focused on the storage sector — a positioning that has shaped its product roadmap, capital allocation, and customer base. Now, this Chinese energy storage manufacturer now ranks Top 2 globally by energy storage battery shipments. Earned recognition on the Global New Energy Top 500 list, HiTHIUM’s global footprint is now organised around four functions — research and development, production, sales, and service — built out across core markets. The company has delivered products and solutions to customers in more than 20 countries and regions. Its established positions in China, North America, and Europe are reinforced by active expansion into the Middle East, Africa, Oceania, and South America. As of June 2025, its global patent portfolio extends across more than 30 countries, with over 4,300 patent applications filed — an intellectual property base that supports both product credibility and the company’s long-duration storage roadmap.
