# Hyosung Heavy Industries power infrastructure expansion > Live situation record from CLSTR: https://clstr.news/situations/hyosung-heavy-industries-power-infrastructure-expansion > Updated: 2026-10-08T00:43:43.000Z. Sources: 4. Developments: 2. Hyosung Heavy Industries has expanded its presence in the global power infrastructure market through both international commercial contracts and domestic technological advancements. In the United States, the company secured contracts worth approximately 386.5 billion won to supply ultra-high voltage transformers to two major American big tech firms for use in new AI data centers. To support this demand, Hyosung is expanding its Memphis, Tennessee production capacity and has formed a joint venture with Quanta Services to produce ultra-high voltage circuit breakers. Simultaneously, the company has advanced its technological capabilities in South Korea by establishing the country’s first performance verification facility for 2GW-class High Voltage Direct Current (HVDC) technology. This facility utilizes a Hardware-In-the-Loop Simulation (HILS) system to test large-capacity controllers under simulated grid conditions, aiming to localize HVDC technology and support projects such as the ‘West Coast Energy Highway’. ## Timeline ### 2026-10-08: Hyosung Heavy Industries builds South Korea’s first 2GW HVDC verification facility Hyosung Heavy Industries has launched South Korea’s first 2GW-class HVDC performance verification facility to advance domestic high-voltage direct current technology and support energy grid infrastructure. 3 sources. https://clstr.news/cluster/hyosung-heavy-industries-builds-south-koreas-first-2gw-hvdc-verification-facility ### 2026-09-15: Hyosung Heavy Industries secures 386.5 billion won transformer deal with U.S. big tech Hyosung Heavy Industries secured 386.5 billion won in contracts to supply ultra-high voltage transformers to two major U.S. big tech firms for AI data center projects. 3 sources. https://clstr.news/cluster/hyosung-heavy-industries-secures-3865-billion-won-transformer-deal-with-us-big-tech --- Cite as: Hyosung Heavy Industries power infrastructure expansion. CLSTR, https://clstr.news/situations/hyosung-heavy-industries-power-infrastructure-expansion