Trillion-Scale Satellite Constellation Deployment Begins: Specialty Engineering Plastics Enter a “Space-Grade” Boom — PEEK/PI’s New Blue Ocean Worth Tens of Billions, as Seen from the Qianfan Constellation

In September 2026, China’s commercial space sector received major news: Alibaba officially entered the low-Earth-orbit (LEO) satellite constellation unicorn “Qianfan Constellation.” Shanghai Yuanxin Satellite Technology Co., Ltd. completed its business registration change, with Hangzhou Alibaba Venture Capital Co., Ltd. registered as a new shareholder, marking the internet giant’s official entry into the LEO satellite internet sector. At the same time, SAIC Motor also became a new shareholder. With the dual backing of industrial capital and an internet giant, the commercialization of the Qianfan Constellation has attracted considerable attention.

The Qianfan Constellation: Space Infrastructure on a Tens-of-Thousands Satellite Scale

As a national-level commercial LEO satellite constellation, the Qianfan Constellation is an aerospace information infrastructure independently built by China. From satellite platforms and communication payloads to launch vehicles, the project relies entirely on a complete domestic industrial chain for independent supply. According to the plan, the Qianfan Constellation will be built in three phases: Phase I will deploy 648 satellites to achieve regional network coverage; Phase II will deploy 1,296 satellites to achieve global coverage; and Phase III will ultimately exceed 15,000 satellites. To date, 238 satellites are already in orbit. The project plans to complete the first-phase global constellation of 324 satellites by the end of 2026 and officially launch commercial operations.

Yuanxin Satellite’s current capital increase reached RMB 6.976 billion, with a post-investment valuation of approximately RMB 50 billion. Alibaba’s move is not a sudden impulse. From launching the “One Station, One Satellite” plan in 2018 to participating in Zhejiang Lab’s “Three-Body Computing Constellation” project, Alibaba has been building its presence in space computing power for years. This strategic investment in the Qianfan Constellation marks the accelerating deep integration of commercial space with cloud computing and AI.

Satellite Industry Explosion: The “Space Opportunity” for Specialty Engineering Plastics

A satellite network on the scale of tens of thousands of satellites means massive material demand. The core requirements for LEO satellite materials can be summarized in four keywords: lightweight, radiation-resistant, resistant to extreme temperature differences, and highly reliable. Traditional metal materials have bottlenecks in weight reduction and processing flexibility, while specialty engineering plastics are becoming the preferred solution for spacecraft design.

In satellite manufacturing, the following specialty engineering plastics play irreplaceable roles:

Polyether ether ketone (PEEK) is one of the most closely watched specialty engineering plastics in the aerospace field today. PEEK offers excellent heat resistance, mechanical strength, and radiation resistance, allowing it to serve long-term in extreme space environments. Studies show that carbon fiber reinforced PEEK composites exhibit outstanding thermal stability and mechanical properties in satellite structural components. The Shenyang Institute of Automation, Chinese Academy of Sciences, has successfully developed an integrated manufacturing technology for CF/PEEK composite tubular units, providing a new lightweight, high-strength solution for on-orbit construction of large space structures. Demand for radiation-resistant modified PEEK in the LEO satellite industry chain has been growing at an annual rate of more than 25%.

Polyimide (PI) is known as the “golden film” and is an indispensable key material for spacecraft. With outstanding heat resistance, excellent dielectric properties, and radiation resistance, PI film is widely used in critical components such as outer thermal protection for spacecraft and substrates for solar cell arrays. From the radiation-shielding “outerwear” of satellites to circuit substrates, polyimide is ubiquitous.

Liquid crystal polymer (LCP) shows unique advantages in satellite communications. LCP has extremely low dielectric loss, excellent weather resistance, and resistance to cosmic radiation, making it an ideal substrate for spaceborne phased-array antennas and high-frequency communication modules. At present, modified LCP materials in China have achieved batch supply for commercial aerospace connector components.

In addition, materials such as cross-linked polystyrene (XCPS), with their ultimate dielectric properties, are becoming indispensable key dielectric materials for spaceborne communications. Modified PPE materials are suitable for communication components such as LEO satellite ground signal receivers.

According to market research reports, the global aerospace plastics market is expected to grow from USD 26.8 billion in 2025 to USD 51.3 billion in 2032, with a CAGR of 9.70%. Material demand driven by LEO constellation deployment and batch commercial rocket launches has only just begun to be released. The period from 2026 to 2028 will be a high-growth window for lightweight specialty polymer materials for aerospace.

Our Value: Providing Key Material Assurance for the “Sea of Stars”

As a company specializing in the import trade of engineering plastic raw materials, we deeply understand the extreme quality requirements of aerospace-grade materials. Whether PEEK, polyimide (PI), liquid crystal polymer (LCP), or high-performance specialty engineering plastics such as polyphenylene sulfide (PPS) and polyetherimide (PEI), we have established a stable and reliable global supply chain.

From material selection consulting and sample provision to volume delivery, we are committed to providing professional and efficient material solutions for high-end applications such as commercial space, satellite manufacturing, and aerospace. As the Qianfan Constellation’s tens-of-thousands-satellite network accelerates and China’s commercial space enters the fast lane, we are ready to join hands with industry chain partners to sail together toward the sea of stars.