THE ONE

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Products & Solutions

Diversified applications built on proven power conversion and autonomous control technologies.
Proven Core, Practical Applications

With proven technology,
we open new possibilities.

Based on its capabilities in power conversion, control, and embedded design,
THEONE develops industrial equipment and systems designed for practical field operation.

From test and evaluation equipment to reliability inspection systems, control boards, and remote monitoring solutions,
we deliver them in the form required for each customer’s process and operating environment.

Beyond simple delivery, we connect design, fabrication, validation, and maintenance
to reduce operational risk and support stable use in the field.

Business Area

Industrial Application Technologies

We design test, evaluation, and reliability inspection equipment based on actual field requirements and validate them in real operating environments.

  • SSD test evaluation equipment

    SSD Test Evaluation Equipment

    Test equipment for reliability and defect inspection based on multi-SSD and PCI-E memory connections.

  • SSD test chamber

    SSD Test Chamber

    A temperature-controlled chamber system for evaluating sample reliability under changing temperature conditions, including heat resistance and thermal variation.

  • USB relay hub

    USB Relay Hub

    Relay hub equipment for power short-circuit reliability testing of USB memory devices.

Solution

Embedded System & Solution

Based on microprocessor-driven embedded design and software technologies, we develop precision measurement and automatic control systems,
and provide integrated solutions for real-time monitoring and remote control across wired and wireless network environments.

Other Commercialized Technologies

  • Embedded Web Server Application Board
  • LCD Line Glass Scan Sensor System
  • Device-Net Control Board
  • Press Height Detector / Press Feed Controller
  • Step Motor Position Controller and Emulator
  • Industrial DC Accumulated Current Meter / Slope Meter for Rectifiers
  • Smart Mobility Control System

    Smart Mobility Control System

  • Press Height Detector

    Press Height Detector

  • Press Feed Controller

    Press Feed Controller

  • Digital, Analog I/O Board

    Digital, Analog I/O Board

  • Lightning protector for signal protection

    Lightning Protector for Signal Protection

Solution

SMR Inverter Business

Overview and technical differentiation of the SMR inverter business

Business Overview

Development of dedicated SMR inverters based on nuclear technology spin-off

By applying the extreme-environment durability of submarine power-control technology to the nuclear field, we develop and supply dedicated inverter systems for small modular reactors (SMRs).

  • Secured durability for extreme environments based on submarine technology
  • Nuclear-grade low-EMI / high-reliability design
  • Redundant systems for uninterrupted power supply
Market Opportunity

Expanding into the next-generation energy market
through grid-forming technology leadership

Through high-voltage stack compatibility and grid stabilization capabilities, we aim to secure differentiated technical positioning in the rapidly growing global SMR market.

  • Advancement of grid-forming and grid-supporting functions
  • High-voltage stack response technology in the 1.5 to 2.0 kV class
  • Early entry into global SMR projects and market positioning
Solution

SMR Market Opportunity

Market opportunity analysis and partnership strategy for SMR inverters

Market Trend

Market trends and
business entry direction

The SMR market is growing rapidly alongside the global shift toward carbon neutrality, expanded distributed power systems, and stronger energy security. Based on its extreme-environment power-control technology, THEONE is focusing on participation in early-stage projects and on building initial reference cases.

  • Carbon neutrality acceleration
  • Expansion of distributed power
  • Stronger safety regulation
  • Rising demand for stable, large-scale power sources driven by the expansion of AI data centers
  • Growing need for energy self-sufficiency and supply-chain stability at the national level
  • Increasing demand for load-following operation to complement renewable energy variability
Partnership Strategy

Market expansion strategy
through global collaboration

More important than entering alone is building technical cooperation with leading global SMR companies and becoming part of their supply chains. A realistic path is to participate in domestic and international projects, accumulate certification and standards-response experience, and then expand step by step.

  • Securing an early demonstration base through participation in domestic innovative SMR programs
  • Expanding into overseas projects after building validated delivery records and obtaining certification
  • Pursuing supply-chain entry through collaboration with major equipment companies and global project developers

Phased Execution Strategy

  • 1

    Participate in domestic SMR projects and align with innovative SMR technology development programs

  • 2

    Secure validated references and obtain global certification

  • 3

    Expand partnerships and supply-chain presence in global SMR projects

Key Partnership Targets

We aim to build technical cooperation with leading global SMR companies and establish a position within their supply chains.

  • NuScale Power
  • GE Hitachi
  • TerraPower
  • Westinghouse
  • Doosan Enerbility (major domestic equipment company)

Risk Factors and Response Strategy

  • Potential delay in commercialization schedules

    We will continue SMR R&D while maintaining financial stability through existing cash-generating businesses such as submarine systems and ESS.

  • Policy changes and regulatory risk

    We distribute regional risk through participation in multinational projects and respond proactively to international standards and certification requirements.

  • Complexity of certification and standardization

    Based on our defense certification experience and high-reliability design know-how, we reflect regulatory response systems from the early design stage.

Built on proven experience,
tell us about your operational needs


  • Company

    THEONE Co., Ltd.

    CEO

    Kyeonghan Jeon
  • Address

    5F, Siwha High-Tech Knowledge Industry Center, 242 Seohaean-ro, Siheung-si, Gyeonggi-do, Korea
  • Fax

    +82-31-499-7473
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