ChinaBiz Briefing: AI Chip Fever, Huawei’s 5nm Leap, and the EV Tech War

The Lead China’s technology sector is currently defined by a stark contrast between aggressive technical breakthroughs and cooling consumer sentiment. While domestic semiconductor stocks rally on AI hype and Huawei reportedly breaches the 5nm manufacturing barrier using legacy tools, the automotive sector faces a paradox of record production against shrinking domestic retail sales. This disconnect is forcing a strategic pivot across the board: chipmakers are chasing valuation narratives over immediate profits, while EV giants scramble to export excess capacity and close the software gap with Tesla.

• Investors Chase the 'Next Cambricon' as AI Chip Valuations Soar

What Happened China’s semiconductor sector is seeing a massive valuation reshaping driven by the AI boom. Led by Cambricon Technologies—whose stock has doubled in 2025 on surging revenue—investors are now aggressively pricing newcomers like Moore Threads (recently listed on the STAR Market) using a "benchmarking Nvidia" narrative. Despite newer entrants like Moore Threads and MetaX still operating at significant losses, the market capitalizations are soaring, decoupled from immediate profitability.

Why It Matters This signals that Chinese capital markets are currently prioritizing "replacement potential" over financial maturity. Unlike the US market where stock gains largely track realized CapEx by tech giants (e.g., Google), Chinese investors are betting on the infrastructure build-out phase, expecting domestic chips to capture the demand created by local Large Language Models (LLMs). However, the divergence between high valuations and negative net margins for new players suggests a volatile correction could be looming if commercialization stalls.

• Report: Huawei Achieves 5nm Performance Using Legacy DUV Tech

What Happened A technical analysis of Huawei’s new Kirin 9030 chipset—powering the Mate 80 series—indicates the company has achieved 5nm-class performance using SMIC’s "N+3" process. Crucially, this was reportedly accomplished without restricted Extreme Ultraviolet (EUV) lithography tools. Instead, manufacturer SMIC utilized Deep Ultraviolet (DUV) lithography combined with complex multi-patterning techniques to deliver a 42% performance boost over the previous generation.

Why It Matters If confirmed, this proves that US export controls have slowed but not stopped China’s ability to produce high-end logic chips. For the global supply chain, it demonstrates SMIC’s ability to push DUV technology to its absolute physical limits. However, relying on multi-patterning is expensive and yield-heavy; the key question for investors is whether this process is commercially scalable at high volumes, or if it will remain a costly, subsidized endeavor to maintain smartphone competitiveness.

• Record Auto Output Clashes with Cooling Domestic Demand

What Happened Chinese automakers broke history in November, producing over 3.53 million vehicles in a single month. However, domestic retail sales simultaneously dropped 8.1%, creating a dangerous inventory pile-up. Manufacturers bridged the gap by surging exports nearly 50% year-on-year. Consequently, profit margins for automakers have compressed to a razor-thin 4.4%, significantly lower than upstream raw material suppliers.

Why It Matters This represents a classic overcapacity signal. With favorable tax exemptions set to expire at the end of 2025, manufacturers are "stuffing the channel" to capture remaining demand. The divergence between production and local sales indicates that 2026 will likely see a brutal price war or accelerated industry consolidation. Furthermore, the aggressive pivot to exports to absorb excess capacity is virtually guaranteed to further inflame trade tensions with the EU and other global markets.

• Horizon Robotics Pivots to Mass Market ADAS for Budget EVs

What Happened Horizon Robotics is shifting strategy to target the volume-heavy budget segment, aiming to install urban autonomous driving capabilities in cars priced as low as RMB 70,000 strategy (approx. US$9,600). Moving away from purely selling chips, the company introduced a new "HSD Together" model to license algorithms and software, effectively trying to standardize smart driving as a commodity feature akin to an automatic transmission.

Why It Matters Advanced Driver-Assistance Systems (ADAS) have largely been the domain of premium EVs. Horizon’s move aims to democratize the technology for the 50% of the market currently underserved. By commoditizing the "smart driving stack," Horizon is forcing automakers to differentiate based on brand and user interface rather than core tech. This also positions the company directly against global competitors as it aligns its next-gen "Journey 7" chip launch with Tesla’s hardware cycles.

• Xpeng and Li Auto Spar Over the Future of Autonomous Driving AI

What Happened A public debate has erupted between executives at Xpeng and Li Auto regarding the technical path to full autonomy: Vision-Language-Action (VLA) models versus World Models. Xpeng CEO He Xiaopeng raised the stakes by betting that his team would face valid penalties if their VLA tech doesn’t match Tesla’s FSD V14.2 by mid-2026. Both companies are aggressively investing in "end-to-end" AI that moves away from traditional rule-based coding.

Why It Matters The "naked run" wager is marketing theater, but the underlying anxiety is real: Chinese EV makers view software sovereignty as their only defensive moat against Tesla’s encroaching FSD. The industry is converging on systems that use "human-like" reasoning (VLA/World Models) to handle complex urban scenarios. For investors, the takeaway is that R&D spending will remain elevated as these companies fight to prove their software is comparable to Silicon Valley’s best before the market consolidates further.

What to Watch Next

• The Policy Cliff: The expiration of vehicle purchase tax exemptions on December 31 will likely cause a sales spike followed by a sharp hangover in Q1 2026.
• Huawei’s Yield Rates: Watch for supply constraints on the Mate 80; high demand coupled with difficult manufacturing could squeeze availability.
• Chip Earnings: As earnings season approaches, look for whether new chip listings like Moore Threads can show a credible path to narrowing losses to justify their Nvidia-adjacent valuations.