AI supply-chain thesis — mapping bottlenecks, focus companies, and supply-chain exposure for investors.
**Unitree Robotics has filed for a Shanghai STAR Market IPO at roughly RMB 4.2B / $608M after shipping the world's cheapest credible humanoid — the $27,300 G1 with an estimated bill of materials under $9,000 — by making its own motors, gearboxes, lidars, and depth cameras in-house and pulling everything else from suppliers a train ride away in the Shenzhen Pearl River Delta ecosystem.** That vertical-and-local model is what blew apart the Western humanoid cost stack and is what makes Unitree the structural anchor for the 2026–2027 humanoid bill-of-materials trade. ## Where Unitree sits in the supply chain Unitree is the OEM. Upstream it touches four layers — each one a separately investable bucket. **Rare-earth feedstock and magnets.** A humanoid carries 40–50 actuators (every joint, every finger, every wrist), each wound on NdFeB sintered magnets. That is roughly 10–20× the rare-earth content of an EV per unit. The listed ex-China feedstock layer is $MP, $USAR, $ALOY, $LYC.AX, $ILU.AX, $UUUU, $TMC. JL Mag and Ningbo Yunsheng dominate inside China. **Servo motors and BLDC actuators.** Unitree designs its own motors but the named upstream actuator supplier across Chinese humanoid OEMs (Unitree, UBTech, AGIBot) is $300124.SZ Inovance — China's #1 servo-motor maker at roughly $22B mcap. Tuopu Group (601689.SS, not yet on Macroplane) supplies rotary actuators and dexterous-hand assemblies. The Western incumbents Unitree underbids: $6594.T Nidec (BLDC and coreless motors) and $MOG.A Moog (aerospace-grade actuators). **Strain-wave reducers — the precision bottleneck.** Cycloidal and harmonic gearboxes are the joint-precision moat. Global incumbent: $6324.T Harmonic Drive Systems (Japan). $6268.T Nabtesco is the cycloidal RV leader for the heavier joints. $SHA.DE Schaeffler is the bearings and planetary-screws layer. Chinese challenger Leader Drive (688017.SS, not on Macroplane) ships at roughly a third of Harmonic Drive pricing and is Tesla Optimus's stated Mexico supplier. Unitree builds its own planetary gearboxes in-house, sidestepping this layer for low-ratio joints — but the rest of the humanoid market still buys from Harmonic, Nabtesco, and Schaeffler. **Sensors and perception.** Unitree self-develops its lidars and depth cameras, which is what flipped its sensor cost vs. competitors. The merchant lidar layer — relevant for any humanoid OEM that does not verticalize — anchors on $HSAI Hesai. Magnetic position sensors and IMUs for joint feedback: $ALGM Allegro, $MELE.BR Melexis, $6762.T TDK (the latter owning InvenSense for IMUs). **Edge compute.** $NVDA (Jetson SoCs and GR00T VLA models — Nvidia is also one of Unitree's largest research-platform customers, alongside Apple and Meta) and $QCOM (RB6 robotics platform) supply the on-board brain. ## The edge Three things make Unitree structurally different from Western humanoid OEMs. 1. **In-house motors at 30–40% of Western prices.** Unitree designs and builds its own BLDC motors and the low-ratio planetary gearboxes. That removes the Harmonic Drive / Maxon margin from the BOM on every joint that does not need strain-wave precision. 2. **Shenzhen-PRD proximity to suppliers.** Prototype samples arrive next-day; iteration cycles are weeks, not quarters. Western humanoid teams sit 6–18 months behind on every BOM revision. 3. **Quadruped scale paid for the humanoid R&D.** Unitree shipped Go2 quadrupeds for $1,600–$2,800 from 2021 onward, generating cash and validating the motor/gearbox stack at scale before pivoting that stack into the G1. The result: G1 ships at ~$27,300 with an estimated 67% gross margin. Tesla Optimus and Figure are still iterating sub-1,000-unit BOMs at numbers Western chains cannot match. ## The risks - **IPO timing.** A $608M Shanghai STAR raise into a humanoid sector with little revenue and concentrated research-platform buyers (Nvidia, Apple, Meta — hundreds of units each) is priced on growth, not earnings. Any slip past the 10,000-unit industrial deployment threshold compresses the multiple immediately. - **Export controls on rare earths and lidar.** Both flow upstream into the BOM. A symmetric move (China cutting magnet exports, US restricting Jetson-class compute) hurts Western humanoid OEMs harder than Unitree, but Unitree still loses access to its Nvidia, TI, and ADI dependencies. - **$TSLA Optimus and AGIBot Walker.** Optimus has Tesla's manufacturing depth; AGIBot has Chinese capital and is already shipping Walker units. Both compress Unitree's margin path even where Unitree wins on cost. - **Verticalization cuts both ways.** Building its own motors and lidars means the structural cost edge is real, but the dependency on the merchant layer shrinks — meaning the upside for $ALGM, $MELE.BR, $HSAI from "Unitree adoption" is muted vs. the upside from Optimus, Figure, and Apptronik. ## The catalysts - **Shanghai STAR Market IPO pricing and first-day trading.** Sets the comparable for every public humanoid pure-play including KOID (KraneShares Humanoid ETF) and KSTR (STAR Market ETF). - **G1 industrial-deployment milestones.** Sub-$30/hour tote-handling labour cost was the stated viability threshold; scaling past 10,000 units is the next. - **$300124.SZ Inovance humanoid revenue split.** Earnings will start breaking out the humanoid contribution from EV/industrial servo motors — the cleanest listed proxy for Unitree volume. - **$6324.T Harmonic Drive order book commentary.** If the Chinese gearbox displacement plays out, this is where the squeeze first shows up. The picks-and-shovels of Unitree are not Unitree shares — they are the rare-earth feedstock, the listed Chinese servo-motor suppliers, the Japanese gearbox incumbents under cost pressure, and the Western sensor IC vendors who win on every humanoid that is not vertically integrated. Not investment advice; do your own research.
Browse all AI supply-chain theses · Macro trends · Industries · Product categories · Baskets