# SOI Micro

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/soi-micro

- Industry: Electronics
- Headquarters: Guangzhou, China
- Website: www.soimicro.com
- Latest round: Series B (Aug 12, 2026)
- Investors on record: 12

## About

Based in Guangdong, China and founded in 2022, Ruili Pingxin Microelectronics (Guangzhou) Co., Ltd., dba SOI Micro, is a microelectronics technology company that focuses on building a mass production platform for FDSOI's (Fully Depleted Silicon on Insulator) specialized processes.

In August 2026, SOI Micro closed a round of Series B funding from Guangzhou Cherami Sun Tour Equity Investment Management, Optics Valley Industrial Investment Fund Management, New City Science and Technology Innovation Capital and Changcun (Wuhan) Capital.

The company's main product is the FDSOI special process mass production platform. Its products are used in automotive electronics, mobile communications, the Internet of Things and other fields.

The company’s revenue is generated by providing FDSOI specialty process mass production platform.

Following the Series B funding, the company will focus on the localization verification of semiconductor equipment, the supply of domestic silicon wafer lithography materials, and continuous process iteration, accelerating the launch and operation of China's first independent FD-SOI mass production line.

## Funding rounds

- Series B, Aug 12, 2026 — Cherami Investment Group, Optics Valley Industrial Investment Fund Management, New City Science and Technology Innovation Capital, Changcun (Wuhan) Capital
- Series A, Jul 9, 2024 — China Science and Tech Innovation Venture Capital, Guangzhou City Development Investment Management, Jiangsu Xinchao Innovation Investment Group, Beijing Lerong Capital, Jianguang Shunchuang Fund
- Series A, Nov 23, 2023 — CITIC Capital Holdings, Rising Investments, Tsinghua Innovation Ventures, Beijing Lerong Capital

## Investors

- CITIC Capital Holdings (https://capitalatlas.ai/funds/citic-capital-holdings) — Series A
- Rising Investments (https://capitalatlas.ai/funds/rising-investments) — Series A
- Tsinghua Innovation Ventures (https://capitalatlas.ai/funds/tsinghua-innovation-ventures) — Series A
- Beijing Lerong Capital — Series A
- China Science and Tech Innovation Venture Capital (https://capitalatlas.ai/funds/china-science-and-tech-innovation-venture-capital) — Series A
- Guangzhou City Development Investment Management — Series A
- Jiangsu Xinchao Innovation Investment Group (https://capitalatlas.ai/funds/jiangsu-xinchao-innovation-investment-group) — Series A
- Jianguang Shunchuang Fund (https://capitalatlas.ai/funds/jianguang-shunchuang-fund) — Series A
- Cherami Investment Group (https://capitalatlas.ai/funds/cherami-investment-group) — Series B
- Optics Valley Industrial Investment Fund Management (https://capitalatlas.ai/funds/optics-valley-industrial-investment-fund-management) — Series B
- New City Science and Technology Innovation Capital (https://capitalatlas.ai/funds/new-city-science-and-technology-innovation-capital) — Series B
- Changcun (Wuhan) Capital (https://capitalatlas.ai/funds/changcun-wuhan-capital) — Series B