SK Hynix breaks ground on $4B Indiana HBM plant for 2029 output

SK Hynix's $4 billion Indiana facility marks the first U.S. advanced packaging site for high-bandwidth memory, the critical component powering Nvidia's AI accelerators.

SK Hynix broke ground Thursday on a $4 billion high-bandwidth memory packaging plant in West Lafayette, Indiana, bringing the most constrained link in the AI supply chain to U.S. soil for the first time.

"In the AI era, producing the best memory is not enough," CEO Kwak Noh-Jung said at the ceremony. "We must also develop customized memory solutions for our customers' AI systems."

The 133.5-acre facility at Purdue Research Park will house advanced HBM packaging and R&D operations, with cleanrooms targeted for completion by October 2028 and mass production of new HBM generations scheduled for the second half of 2029. The project is backed by up to $458 million in CHIPS Act grants and $500 million in loans.

The plant puts SK Hynix — which holds roughly 58 percent of global HBM revenue — closer to its largest customers, including Nvidia, whose data center revenue surged 117 percent to $89 billion in the latest quarter. SK Hynix ADRs rose 2.27 percent Thursday.

Closing the advanced packaging gap

Advanced packaging — stacking memory dies vertically to feed data to AI accelerators at extreme speeds — has been a bottleneck in the U.S. semiconductor supply chain. The Commerce Department has described HBM as a key constraint in the AI supply chain. SK Hynix will produce wafers in South Korea and ship them to Indiana for packaging and testing, creating an integrated production network spanning two countries.

The facility is expected to create about 1,000 direct jobs and roughly 7,000 direct and indirect positions across the surrounding supply chain. SK Hynix is evaluating more than 100 materials, parts, and equipment suppliers to build a local supplier network around the plant. The company also signed a research partnership with Purdue University covering HBM system integration and advanced packaging, aiming to build technical talent and knowledge in the U.S.

The CHIPS and Science Act, signed into law in 2022, was designed to reduce U.S. dependence on overseas semiconductor production. SK Hynix's Indiana project is among the largest foreign chipmaker investments enabled by the program, which has also drawn commitments from TSMC and Samsung to build fabrication plants on U.S. soil.

HBM demand and competitive stakes

The investment comes as demand for HBM continues to surge with the expansion of generative AI infrastructure. Nvidia reported fiscal second-quarter revenue of $96.2 billion, up 106 percent year over year, and expects roughly $108 billion next quarter. Each new Nvidia platform generation requires increasingly sophisticated memory configurations, making HBM one of the tightest links in the AI hardware supply chain.

SK Hynix enters this expansion from a position of strength, reporting a 76 percent operating margin in its most recent quarter. But the company faces competitive pressure from Samsung Electronics and Micron Technology, both racing to expand HBM capacity. The long construction timeline — with mass production not expected until late 2029 — creates execution risk if AI infrastructure investment slows before then or if rivals add capacity faster.

For investors, the key metrics to watch are HBM shipment growth, pricing, customer commitments, and whether the plant begins operations on schedule. SK Hynix ADRs, trading under the ticker SKHY on Nasdaq, closed up 2.27 percent Thursday as the market absorbed the announcement. SK Group separately announced employment opportunities for U.S. veterans, connecting to Indiana's historical ties with South Korea, which sent about 140,000 soldiers to the Korean War.

This article is for informational purposes only and does not constitute investment advice.