CAS Star

Founded in 2013, CAS Star is a venture capital firm based in Xi'an with an additional office in Beijing. It invests in and supports early-stage companies across various high-tech industries including optoelectronics, AI, biotechnology, aerospace, smart manufacturing, information technology, energy, oncology, advanced manufacturing, SaaS, and space technology.

Mi Lei

Founding Partner

Past deals in CleanTech

Kaifu Optoelectronics

Seed Round in 2025
Kaifu Optoelectronics is an innovative enterprise engaged in mass production of core equipment for efficient and stable perovskite solar cells.

Yi Fu Energy

Seed Round in 2025
Yi Fu Energy is a new energy battery R&D and production company, focusing on the R&D and industrialization of liquid flow battery energy storage technology.

ICT Developer

Series A in 2024
ICT Developer is a company specializing in hydrogen energy solutions. It aims to foster a hydrogen energy ecosystem through technological innovation and integration. The company's offerings include solutions for the hydrogen energy business, low carbon business, energy management, technological incubation, and industry investment. These services help energy industry businesses secure resources and financial support, thereby promoting the use of hydrogen energy and other low-carbon emitting technologies.

Xingneng Xuanguang

Seed Round in 2024
Xingneng Xuanguang is a fusion energy company that specializes in the development of advanced field reverse magnetic mirror fusion path technology.

Zhongke Bosheng

Series A in 2024
Zhongke Bosheng develops and manufactures thermoelectric semiconductor materials for vehicle temperature control.

X-MAGTECH

Series A in 2024
X-MAGTECH is a technology platform for measuring extremely weak magnetic fields.

KansenBio

Seed Round in 2024
KansenBio is a biotechnology company that specializes in the research, development, and manufacturing of synthetic biology products. Its core technologies include synthetic biology, strain-fermentation-separation integration, and AI. The company focuses on producing hyaluronic acid, ectoine, L-Histidine, and sialic acids, offering eco-friendly and sustainable solutions to its clients.

Startous fusion

Seed Round in 2024
Startous Fusion focuses on developing and commercializing fusion energy technologies, aiming for controllable device miniaturization, commercialization, and fast iteration, integrating design, R&D, operation, and maintenance.

Qingsheng Intelligent Control

Seed Round in 2024
Qingsheng Intelligent Control focuses on novel power systems and industrial control systems. It targets equipment manufacturers, photovoltaic power stations, power grid companies, and other customers in the energy industry, delves into the new power system industry's pain points, and combines Tsinghua University's "Information Pipe Technology" (IPT technology) to provide digital, intelligent, high-reliability, nationally produced, and independently controllable intelligent IoT system solutions.

Zhizi Automobile

Venture Round in 2024
Proton Automobile is a new energy intelligent vehicle developer that concentrates on R&D innovation and sales operations.

Magneto New Energy

Angel Round in 2023
Magneto New Energy is a high-temperature superconducting motor technology company that focuses on research and development, manufacturing, and sales of high-temperature offshore superconducting wind turbine products

Tanrand Technology

Angel Round in 2023
Tanyuan Technology, established as a high-tech enterprise, specializes in the research, development, production, and sales of carbon nanotube macroscopic materials. Its primary focus is on manufacturing these materials for application in aerospace, oil exploration, and new energy vehicle production. The company's products are renowned for their exceptional thermal, mechanical, electrical, optical, and other high-performance properties, enabling clients to achieve materials with superior thermal, electrical, and weight-saving characteristics.

Zhongke Huizhi

Angel Round in 2023
Zhongke Huizhi manufactures and markets precision gas separation and purification materials and technology.

Su Li Technology

Angel Round in 2023
Su Li Technology is specialized in the new energy material sector that focuses on the research and development, manufacture, and sales of a new generation of lithium battery cathode materials. It offers a number of cutting-edge lithium-rich manganese-based cathode materials as well as low-cost process technologies. Positive electrode materials offered include ultra-high nickel and high nickel with stable product performance and mature preparation technology.

Saphlux

Series B in 2022
Saphlux, Inc. is a company based in New Haven, Connecticut, that specializes in the development, production, and commercialization of advanced semi-polar gallium nitride (GaN) materials. Founded in 2014, Saphlux addresses critical challenges in LED and laser technology, specifically targeting droop and green gap issues. The company offers semi-polar GaN templates in various sizes and is known for its innovative quantum dot (QD) technology integrated into micro-LED solutions. Saphlux designs and manufactures micro-LED chips and micro-display modules, including the NPQD R1 chip for public information displays and the NPQD T1 micro-display for augmented reality glasses. With a focus on enhancing output power and performance while reducing costs, Saphlux operates on a global scale, serving markets in the United States, China, and Japan.

Renshuo Solar

Seed Round in 2022
Renshuo Solar is a manufacturer of perovskite tandem solar panels.

Startous fusion

Angel Round in 2022
Startous Fusion focuses on developing and commercializing fusion energy technologies, aiming for controllable device miniaturization, commercialization, and fast iteration, integrating design, R&D, operation, and maintenance.

Lvzhou Technology

Series A in 2021
Lvzhou Technology specializes in artificial intelligence (AI) and Internet of Things (IoT) solutions, focusing on intelligent management within the energy and battery sectors. The company offers a control center platform that integrates AI and IoT technologies to enhance traditional manufacturing processes. This includes applications in unmanned power stations, unmanned retail, smart logistics, and smart supply chain management. By leveraging advanced technology, Lvzhou Technology aims to optimize operational efficiency and drive innovation in various industrial domains.

Saphlux

Series A in 2017
Saphlux, Inc. is a company based in New Haven, Connecticut, that specializes in the development, production, and commercialization of advanced semi-polar gallium nitride (GaN) materials. Founded in 2014, Saphlux addresses critical challenges in LED and laser technology, specifically targeting droop and green gap issues. The company offers semi-polar GaN templates in various sizes and is known for its innovative quantum dot (QD) technology integrated into micro-LED solutions. Saphlux designs and manufactures micro-LED chips and micro-display modules, including the NPQD R1 chip for public information displays and the NPQD T1 micro-display for augmented reality glasses. With a focus on enhancing output power and performance while reducing costs, Saphlux operates on a global scale, serving markets in the United States, China, and Japan.

Zhongke Bosheng

Zhongke Bosheng develops and manufactures thermoelectric semiconductor materials for vehicle temperature control.
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