Samsung C&T's Construction Division announced on May 28th that it has successfully completed the proof of concept for its core technology in small modular reactor (SMR) construction—steel-composite (SC) wall modules—marking a significant step forward in capturing the global nuclear market.
The company revealed that the full-scale demonstration of the SC wall modularization technology, developed in cooperation with Japan’s leading heavy industry firm IHI, was completed at IHI’s Yokohama plant. The event was attended by representatives from Romania’s ROPower, the project owner for Romania’s SMR initiative, as well as officials from Fluor, NuScale, and IHI, who participated in the unveiling of the prototype and a handover ceremony.
Transitioning from On-Site to Modular Assembly
Traditionally, nuclear project structures are built on-site through formwork, rebar placement, and concrete pouring. However, Samsung C&T’s innovative approach with IHI involves pre-fabricating steel plates into modules, which are then filled with concrete to form the structural walls—a method that greatly enhances safety and quality.
The demonstration modules, produced entirely in a factory, can be assembled on-site, satisfying key SMR project requirements such as shortened construction timelines, cost reductions, improved quality, and enhanced safety. Thanks to these advantages, the SC modularization technology is considered a ‘game changer’ in the field of SMR construction.
Samsung C&T is currently participating in the Basic Design (FEED) phase of Romania’s SMR project. The success of this demonstration positions the company as a strong candidate to lead construction efforts in the upcoming project phase. Moreover, leveraging this modular technology offers competitive advantages in entering other international SMR markets.
Kwon Woon-seok, head of Samsung C&T’s Nuclear Power Division, stated, “This demonstration of the SC modules clearly demonstrates our technological capabilities and project execution strength in SMR construction.” He added, “Building on the success of Romania’s SMR project, we aim to establish a leading position in the global SMR market.”
With this achievement, Samsung C&T plans to pioneer innovations in SMR construction methods and strengthen its technological leadership in the next-generation nuclear power sector, where safety and cost-efficiency are paramount.
