China-Korea Energy Alliance: REPT BATTERO Forges Strategic Partnership with Hyosung Heavy Industries

On May 27, 2025, Chinese battery technology company REPT BATTERO Energy (0666.HK) signed a strategic cooperation memorandum with Korean industrial conglomerate Hyosung Heavy Industries in Seoul, announcing comprehensive collaboration across energy storage cell supply, system integration, and global market expansion.

Under the agreement, REPT BATTERO will supply 2.5GWh of energy storage cells, modules, and DC-side containerized systems while providing system design and quality control expertise. Hyosung Heavy Industries will leverage its global power equipment distribution network for product localization and market development.

source: REPT BATTERO

The partnership centers on REPT BATTERO's next-generation 392Ah energy storage cells, delivering 415Wh/L energy density with over 12,000 cycle life, engineered for extreme climate conditions and high-load scenarios. The cells have passed GB 44240-2024 shallow puncture testing, achieving "no fire, no explosion" performance under thermal runaway conditions. The jointly developed Powtrix DC-side containerized energy storage system offers 6.26MWh capacity, integrating AI-powered operations and active balancing technology that reduces downtime by 20% and improves battery utilization by 15%. The system can be flexibly configured for either 4-hour long-duration storage or 2-hour rapid response applications.

This technological advancement reflects REPT BATTERO's continued investment in its proprietary "Wending" patent portfolio and battery R&D capabilities. The company's innovative cell structure and thermal-electrical separation design significantly enhance volumetric efficiency and safety, providing foundational support for industrial-scale energy storage applications.

Hyosung Heavy Industries, a leading Korean power equipment manufacturer, holds dominant positions in high-voltage transformers and circuit breakers globally. The company commands the largest market share in Korean power transformers and leads Europe's 400kV transformer market with over 80% share in Norway, achieving cumulative sales exceeding 10 trillion Korean won. By integrating Korean KTL and European/American UL/IEC standards, the partnership can accelerate market entry across high-growth regions including Southeast Asia and North America.

In terms of global expansion, REPT BATTERO has established an 8GWh annual capacity facility in Indonesia, serving Southeast Asian heavy-duty electric vehicle and grid-side storage markets. The company's European subsidiary in Munich maintains partnerships with Stellantis and Volvo. Financial reports indicate overseas revenue surged 526.65% year-over-year in 2024.

Hyosung's deep expertise in power-intensive industries including electricity and steel will facilitate energy storage solution penetration into industrial applications, potentially replicating successful projects like the Meizhou cement plant initiative across emerging markets. Recent years have witnessed explosive demand for GWh-scale solar-plus-storage projects in the Middle East, Latin America, and other emerging markets, positioning the partnership to rapidly address incremental demand in Southeast Asia and North America.

According to TrendForce projections, global energy storage installations will reach 221GWh in 2025 (36% year-over-year growth), with China, the US, and Europe accounting for 85% of capacity, while the Middle East and Africa demonstrate the fastest growth rates. Through strategic partnerships, REPT BATTERO is accelerating the construction of a global network spanning three traditional markets and emerging growth centers.

This collaboration reflects the strategic transformation of Chinese energy storage companies' international expansion.

First, China's energy storage industry is evolving from product export to technology standard export. This partnership exemplifies this shift, with REPT BATTERO supplying not only cells but also system integration and quality control frameworks, potentially driving convergence between Chinese technical standards and international certifications.

Second, the transition from domestic to international markets represents a shift from price-based competition to value chain integration. For instance, through "equipment supply plus revenue sharing" models, companies are moving away from low-price competition toward full lifecycle value sharing.

Additionally, the industry is evolving from single-market focus to ecosystem alliance development. Hyosung Heavy Industries' EPC capabilities and industrial client resources address battery companies' application gaps in heavy industry sectors, creating a comprehensive ecosystem encompassing "battery technology + power engineering + distribution networks."

Conclusion

The REPT BATTERO-Hyosung Heavy Industries alliance represents both corporate resource complementarity and a microcosm of Sino-Korean technological collaboration under carbon neutrality objectives. Hyosung Heavy Industries CEO Woo Tae-hee emphasized the commitment to "becoming a global energy solution leader," while REPT BATTERO President Feng Ting characterized the partnership as "a breakthrough in Sino-Korean energy storage market collaboration."

The convergence of Chinese battery innovation with Korean industrial channels has elevated global energy storage competition beyond simple product cost-performance ratios to comprehensive competition encompassing technical standards, localized services, and ecosystem collaboration.

The essence of green transformation lies in economic viability. The Sino-Korean corporate alliance is writing a new playbook for "cost reduction and carbon reduction" across energy-intensive industries.