# SunUp Fusion

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/sunup-fusion

- Industry: Power & Utilities
- Headquarters: Shanghai, China
- Latest round: Angel (Jan 5, 2026)
- Investors on record: 14

## About

Based in Shanghai, China and founded in 2025, SunUp Fusion (Shanghai) Technology Co., Ltd., trading as SunUp Fusion, was incubated by Fudan University's magnetic confinement fusion team. The company develops high-magnetic-field compact fusion power plant technology using deuterium-helium-3 as fuel, differentiating from the mainstream deuterium-tritium approach. Its core technical team comes from leading domestic and international universities and research institutions with extensive experience in large-scale fusion device design, construction, and operations. In June 2026, the company raised USD 100 million in venture funding.

The company develops compact nuclear fusion reactor technologies using the deuterium-helium-3 fuel pathway, which produces minimal neutron radiation compared to deuterium-tritium systems. Its first-generation experimental device, HOPE (High-field Operation Plasma Experiment), is currently under construction, leveraging high-temperature superconducting strong magnetic field technology and AI plasma control systems. The firm aims to deploy small scale power plants close to cities and data centers as a clean and deployable energy solution.

The company generates revenue through research services, technology development projects, and related collaboration or technical service arrangements.

The company plans to use the lastest funding to advance the construction of its HOPE experimental device and accelerate the engineering development of its fusion technologies.

## Funding rounds

- Angel, Jan 5, 2026 — IDG Capital, China Development Bank Capital, Casstar Capital, Fudan Innovation Centre, Fibonacci VC, HSG, CDH Baifu Capital, Shanghai Sci-Tech Innovation Center Capital, J-Yuan Trust, R-Z Capital, GL Ventures, Wofo Ventures, Loongson Baifu Venture Capital, Houxue Capital

## Investors

- IDG Capital (https://capitalatlas.ai/funds/idg-capital) — Angel
- China Development Bank Capital — Angel
- Casstar Capital (https://capitalatlas.ai/funds/casstar-capital) — Angel
- Fudan Innovation Centre (https://capitalatlas.ai/funds/fudan-innovation-centre) — Angel
- Fibonacci VC (https://capitalatlas.ai/funds/fibonacci-vc) — Angel
- HSG (https://capitalatlas.ai/funds/hsg) — Angel
- CDH Baifu Capital (https://capitalatlas.ai/funds/cdh-baifu-capital) — Angel
- Shanghai Sci-Tech Innovation Center Capital (https://capitalatlas.ai/funds/shanghai-sci-tech-innovation-center-capital) — Angel
- J-Yuan Trust — Angel
- R-Z Capital (https://capitalatlas.ai/funds/r-z-capital) — Angel
- GL Ventures (https://capitalatlas.ai/funds/gl-ventures) — Angel
- Wofo Ventures (https://capitalatlas.ai/funds/wofo-ventures) — Angel
- Loongson Baifu Venture Capital (https://capitalatlas.ai/funds/loongson-baifu-venture-capital) — Angel
- Houxue Capital (https://capitalatlas.ai/funds/houxue-capital) — Angel