光速一构 raises tens-of-millions RMB Pre-A round for automotive-grade elastomer 3D printing super-factory

光速一构 (Guangsu Yigou), a Chinese additive manufacturing startup, has closed a tens-of-millions RMB Pre-A funding round, its second capital raise in six months. The company will use the proceeds to build an automotive-grade elastomer 3D printing super-factory, scaling production capacity for industrial-grade elastic materials. Specific investor names and exact valuation were not disclosed, but the round signals sustained investor appetite for production-scale polymer AM in China's automotive supply chain.

This funding fits the Chinese localization arc pattern, where a domestic entrant moves beyond matching Western specs to integrating materials, service capacity, and customer references for a specific vertical. The automotive segment has historically been selective and tooling-heavy for AM, with narrow serial-part adoption. 光速一构 is targeting a gap: elastomer parts for automotive sealing, gaskets, and vibration-damping components - applications where traditional molding requires high tooling costs and long lead times. By building a dedicated super-factory, the company is betting that production-scale polymer AM can compete on cost and lead time for mid-volume elastomer runs, a frontier that has seen limited industrial adoption outside of prototyping and low-volume tooling.

From a practical standpoint, the key execution challenge for 光速一构 will be qualifying its elastomer materials and printed parts against automotive OEM specifications for durability, temperature range, and compression set. The company must demonstrate repeatable mechanical properties across production batches, not just in demo cells. For buyers in automotive procurement, this development is worth tracking as a potential alternative to molded elastomer supply chains, but only if the super-factory delivers consistent quality at competitive per-part economics.