LG Electronics spent decades selling air conditioners to households. Its fastest-growing order book now comes from windowless buildings full of servers.
The South Korean company said Oct. 28 that cumulative orders for AI data center cooling equipment reached 3 trillion won, about $2.27 billion, at the end of September. At the end of June the figure stood at roughly 600 billion won. More than 2.4 trillion won was booked in the third quarter alone, four times the entire backlog the business had accumulated by midyear.
Industrial equipment rarely moves at that speed. Orders for chillers, pumps and coolant loops normally trail construction schedules by quarters. The acceleration says something about how far ahead the largest computing customers are now contracting for the mechanical systems inside their buildings, and how much of the value in an AI campus has moved into parts that were once an afterthought.
The biggest single piece of evidence came on Oct. 5, when LG signed a long-term supply agreement with Air Control Concepts, a North American infrastructure platform, to deliver chillers in stages to AI data centers with a combined capacity of 5 gigawatts. The arrangement is a framework rather than a single purchase, with volumes released as individual campuses move through design and construction.
To serve it, LG is adding 220 billion won of investment to expand chiller production in South Korea and to set up a manufacturing base in the United States. The company also pulled forward a target of 1 trillion won in annual chiller revenue, previously set for 2027, without saying by how much.
The shift from air to liquid cooling explains part of the demand. Accelerators packed into a single rack give off far more heat than the airflow of a conventional data hall can carry, so operators are installing direct-to-chip loops and the chillers and distribution units that support them. Those systems are specified early, ordered early and built to the dimensions of a particular building, which makes them hard to move between projects once a design is fixed.
LG has one advantage that pure-play suppliers lack. It makes compressors, heat exchangers and controls inside its own organization, which means it can schedule a chiller against its own component lines instead of queueing behind other customers at a third-party factory. That matters in a market where lead times have stretched across the industry and buyers are competing for slots rather than negotiating price.
The order disclosure came alongside third-quarter results that show how much of LG still runs on refrigerators and televisions. Revenue rose 8.9% from a year earlier to 23.82 trillion won. Operating profit was 781.9 billion won, a margin of about 3.3%. Net profit rose 53.7% to 708.4 billion won. For the first nine months, revenue of 71.38 trillion won and operating profit of 4.03 trillion won were both records for the period, and the vehicle components unit posted its best third quarter.
LG has spent several years trying to build businesses that sell to other companies rather than to shoppers, on the theory that appliances offer volume but little pricing power. Cooling for data centers fits that plan better than most of its earlier attempts: the customer is one large buyer, the product is engineered to order, and the contract runs for years. Executives have described the goal as becoming a supplier to the infrastructure buildout rather than a vendor of finished boxes.
The caution is margin. A 3.3% operating margin at the group level leaves little room for error, and the chiller business is still small relative to the appliances that fund it. Established American and European chiller makers have supplied these customers for decades, hold service networks and sit on the approved-vendor lists of the engineering firms that write data center specifications. Winning orders is one test. Earning a return on them is another.
Building capacity in the United States addresses a practical problem. Equipment for a campus in Texas or Virginia is heavy, awkward to ship and increasingly subject to procurement rules that favor domestic manufacturing, while lead times for large chillers have grown as orders piled up across the industry. A plant closer to the site shortens the distance between factory and construction schedule and puts LG inside its customers’ sourcing preferences.
There is also concentration risk. A framework agreement with one infrastructure platform for 5 gigawatts is a large commitment for a business that booked 600 billion won in orders through June, and a change in that customer’s construction plans would be visible in the numbers quickly. The backlog is only as firm as the delivery schedules underneath it.
For now the order book is the story the company wants investors to read. What LG does not disclose is how much revenue those orders will produce, on what schedule, or at what margin. Until the chillers ship and the figures land in the industrial segment’s results, the 3 trillion won measures demand, not profit.
Three trillion won of orders in a business that barely existed two years ago is a real change in the shape of the company. Whether it becomes a durable second leg or a spike tied to one building boom will be settled by the next several quarters of deliveries, and by whether the customers who signed for 5 gigawatts come back for the next 5.
