Industry
Hyundai Mobis starts Atlas actuator prototypes at Uiwang
Short answer: Hyundai Mobis has begun prototype production of actuators for Boston Dynamics’ Atlas humanoid at its Uiwang research centre in Gyeonggi Province, with a target of supplying all 31 joints per robot by 2028, according to trade coverage dated early November 2026.
What Mobis is building
The Robotics Media reports that November 2026 prototype work covers the motorised joint components that act as Atlas’s muscles. Mobis aims eventually to supply every one of the 31 actuators on a single Atlas unit. The same report says actuators can account for 40% to 60% of a humanoid’s manufacturing cost, which is why an automotive-scale supplier sees the category as strategic.
Hyundai Motor Group owns Boston Dynamics, giving Mobis a captive first customer while it also says it wants to sell components to other humanoid makers. That captive relationship is a competitive fact of group ownership, not a guarantee that Atlas volume will hit every plan.
Factory and earnings backdrop
The Robotics Media says Mobis is planning a US plant with annual capacity of 350,000 actuator units, expandable to 700,000 with a second shift, timed around Atlas’s planned 2028 commercial rollout at Hyundai Motor Group’s Georgia plant. Alongside the robotics push, the outlet cites Q3 2026 operating profit of 914.1 billion won, about $684.7 million, up 17.2% year over year, and R&D spending set to exceed about $1.5 billion annually.
Herald Business and other Korean business wires also covered the November prototype start in the same earnings window. Exact joint specifications and customer pricing are not public in these reports.
How to read the announcement
Prototype production is not volume supply. Mobis still has to clear performance and reliability testing with Boston Dynamics before 2028 shipments. For humanoid watchers, the signal is supply-chain localisation inside the Hyundai group: Atlas’s most expensive bill-of-materials category is being pulled into an auto-parts production system rather than left entirely to specialist robotics vendors.