Recently, Startorus Fusion has completed its A++ round financing, raising 880 million RMB. This financing round brings together investment institutions including Shenzhen Investment Holding Capital, Shenzhen Credit Guarantee Venture Capital, ABC Capital, BOCOM International Ventures, GGV Capital, Yongxin Fangzhou Capital, COCOCAPITAL Corporation and PreIPO Capital. Previous investors such as the intellectual property fund under Shanghai S&T Venture Capital (Group) Co., Ltd.‌‌‌ have taken part in follow-up investment.

Capital raised from this round, alongside funds secured in the A round and A+ round, will fund the construction of the Shanghai Jiading Experimental Base, the buildout and operation of NTST (short for Negative Triangular Spherical Tokamak), and the design and construction of CTRFR-1 or Startorus-1. The capital will also support ongoing engineering work on reactor grade high-temperature superconducting magnets and plasma control technology powered by artificial intelligence. The company aims to strengthen its comprehensive capacity at the fusion energy engineering stage.

Key Engineering Projects Move Forward As Scheduled

Since the close of A+ round financing, Startorus Fusion has shifted its engineering progress from “breakthroughs at separate key nodes” to a systematic stage of coordinated advancement covering “apparatus platforms, core components, supporting systems and product delivery”.

Construction work proceeds smoothly on Shanghai Jiading Experimental Base. The project broke ground in April 2026 and has finished pile foundation work. Construction teams focus on core functional zones such as apparatus hall. The base will gradually meet requirements for apparatus construction and equipment admission in the second half of 2026. It will serve as a major carrier platform for subsequent apparatus operation and engineering verification of the company.

Panoramic View of Shanghai Experimental Base Under Construction

Apparatus Hall Inside Shanghai Experimental Base Under Construction

Construction Progress of Shanghai Experimental Base

Full scale construction of NTST has entered the formal implementation phase. For the construction of NTST, the company advances the overall development of the main apparatus, core components and supporting systems. The fabrication of key parts including vacuum vessel, dewar, structural pieces and magnets proceed on schedule. Development and delivery for cooling, power supply, diagnosis, information and safety systems also move forward as planned. Teams conduct coil winding, coil box fabrication, raw material inspection and supply chain coordination at the same time. Once the apparatus hall meets operating standards, NTST will go through installation and commissioning and function as a vital platform for physical research and engineering tests.

Impregnation Work for Toroidal Field Coil

In the field of high-temperature superconducting magnets, the full-size toroidal field magnet developed independently by the company has passed low-temperature excitation tests under 20 K and reached an operating current of 4.5 kA. The magnet stands four meters in height and two meters in width. Its physical size matches the standard for future fusion reactors instead of a scaleddown test sample. As the world’s first fullsize high-temperature superconducting toroidal field magnet designed for spherical tokamak reactors, its coil box delivers an engineering current density above 40 A/mm², and the winding reaches 375 A/mm². Stable performance in repeated tests marks major progress on reactor grade superconducting magnet engineering and provides solid support for the research and build of CTRFR-1 (Startorus-1). Meanwhile, low-temperature tests and verification keep going for core components such as the full-size high-temperature superconducting ohmic-field magnet and current leads.

Test Site of Full-Size Toroidal Field Magnet

The magnet power supply of the NTST apparatus adopts a general pulse power supply solution developed independently by Startorus Fusion. Based on a modular design, this solution can act as basic units for flexible expansion through series and parallel connections to meet the driving demands of PF, CS and TF magnets. At present, the power-supply system has moved from prototype development to engineering delivery and official mass-production. To support high-standard mass production, the team has completed process verification for the whole workflow including PCBA processing, complete machine assembly and testing. Standardized documents for production, assembly and inspection are compiled. Self-developed automatic test fixtures are deployed to raise the test efficiency of modules and guarantee product consistency and delivery speed. Parallel work flows of “Production, Acceptance Inspection and Joint Debugging” help speed up high-quality delivery of the powersupply system. In the meantime, the NTST-TF power-supply system has finished full assembly and entered the testing phase. Preliminary test results prove all functions satisfy design specifications and the operating performance matches expectations. Follow-up tests will proceed in good order and offer solid support for the overall construction of NTST. 

Construction of NTST-TFPS

For intelligent technology research, Startorus Fusion keeps promoting the practical deployment of artificial intelligence in fusion research and experimental analysis. Its self-developed intelligent agent named TokaPilot works on key stages including diagnostic signal processing, experimental analysis, fault inspection and data labeling. A collaborative research mode takes shape with “Domain Experts + Intelligent Agents”. Centered on fusion experiment scenarios, the company speeds up the construction of the intelligent agent tool chain, drives efficient linkage among experimental data, analysis programs and physical models, and steadily improves research efficiency, analysis quality and engineering capacity.

Access Entry for TokaPilot Browser-based Plugin

Based on the construction demands of fusion apparatus, Startorus Electronics develops core electronic and electrical products including pulse power supplies, signal conditioning equipment, signal acquisition and sensing equipment. Part of these products have been delivered to universities, research institutes and high-end equipment scenarios. These technical resources support the construction of the company’s own fusion apparatus and also delivers spill-over value for the domestic production and engineering application of core components within the fusion industrial chain.

Fusion Commercialization Enters Engineering Competition Stage

The global controlled fusion industry moves fast from scientific concept verification to systematic engineering assessment at present. Industrial competition now focuses on apparatus construction, core component manufacture, system integration and stable operation capacity.

The long-term competitive strength of fusion enterprises depends on the capacity to manufacture key components, build apparatus, maintain stable experimental operation and lower risks in technology and engineering at every key node continuously. Based on its original technical route of repetitive reconnection spherical tokamak, Startorus Fusion keeps investment on high-temperature superconducting magnets, artificial intelligence plasma control, apparatus system integration and delivery of key products. The enterprise will steadily push forward engineering research and commercial application for fusion energy.