As Beijing intensifies its drive for semiconductor self-sufficiency, the focus often lands on high-profile bottlenecks like lithography or HBM memory. However, a recent disclosure from GRINM Powder (有研粉材) highlights the critical importance of the specialized materials layer in China’s AI hardware ecosystem. The company confirmed it is the exclusive supplier of a co-developed heat-dissipating copper powder currently used in Huawei’s flagship Ascend 910 series chips.
The Ascend 910 is widely regarded as China’s most viable domestic alternative to NVIDIA’s high-end GPUs, which are currently restricted under U.S. export controls. As AI processing demands increase, thermal management becomes a decisive factor in performance stability. The partnership between Huawei and GRINM Powder represents a strategic move to optimize heat conduction at the molecular level, ensuring that domestic silicon can operate at the high frequencies required for training large language models.
While market rumors previously suggested that Huawei might be pivoting toward exotic solutions like synthetic diamond-based cooling, GRINM’s statement clarifies that copper powder remains a core pillar of the current thermal architecture. This co-development model allows Huawei to tailor material properties specifically to the unique architecture of the Ascend series. It also creates a closed-loop supply chain that is insulated from external geopolitical pressures and trade sanctions.
This development underscores a broader trend in the Chinese tech sector: the vertical integration of the supply chain. By working directly with domestic material scientists, Huawei is not just replacing foreign components but is attempting to innovate through proprietary material science. For investors and global analysts, this indicates that the battle for AI supremacy in China is moving beyond chip design and into the fundamental building blocks of hardware engineering.