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SK Group says SK hynix will add U.S. staff and restructure its U.S. operations around Dec. 3, after HBM chief Ahn Hyun was named to lead a new Americas unit; no headcount given.
Chips & Power DeskEdited by Ege Erten
2 min readAI-assisted
Rendering of SK hynix's planned HBM advanced packaging plant in West Lafayette, Indiana, where the company broke ground in August 2026 (SK hynix).
Image: SK hynix
Source · Press image from the SK hynix newsroom, used for news reporting.
SK Group said on Nov. 9 that SK hynix is preparing to expand its U.S. workforce, with more executive appointments and a reorganization of its U.S. operations planned around Dec. 3, according to Yonhap reports carried by Korea JoongAng Daily and The Korea Times.
Yonhap said the move appears aimed at strengthening ties with major U.S. customers, including NVIDIA. That reading is the reporter's inference, not a statement from either company. The reports give no headcount, budget or site list for the added staff, and no NVIDIA statement.
The U.S. push builds on a leadership change announced earlier. On Oct. 30, as part of SK Group's 2027 appointments, SK hynix said President Ahn Hyun would leave his post as development chief to head a new Americas organization based in the U.S., effective Nov. 1, according to The Korea Herald. SK hynix said the role would deepen work with major U.S. technology customers and strengthen R&D. Ahn led development of the company's AI memory products, including high bandwidth memory (HBM), the stacked DRAM that sits beside AI accelerators.
Yonhap noted that SK hynix's U.S. operations have traditionally been led by executives from sales and marketing. Industry sources told the agency the change reflects how HBM contracts are now won: memory makers work with customers from the earliest stage of product development to tailor chips to AI infrastructure. One unnamed industry official was quoted saying companies can no longer stay competitive without working closely with customers from the R&D stage.
For data-center buyers, the practical point is where HBM supply is decided. If design-in happens in the customer's own region, memory allocation for the next accelerator generation is set well before volume production. Seoul Economic Daily reported that HBM4, the sixth generation, is slated for NVIDIA's Vera Rubin accelerators, and that competition is shifting to HBM4E.
Seoul Economic Daily said SK hynix broke ground in August 2026 on a next-generation HBM packaging plant in Indiana, and described Ahn's appointment as part of a plan to treat the U.S. as a hub linking R&D, production and customer collaboration rather than only a sales market. The same newspaper said Cha Seon-yong took over development from Ahn, effective Nov. 1.
The expansion follows a record quarter. SK hynix reported Q3 operating profit of 83.3338 trillion won on Oct. 28, as Voltgrid reported, on revenue of 104.6155 trillion won, according to Seoul Economic Daily.
The Dec. 3 timing comes from SK Group through Yonhap; SK hynix has not published the names or posts involved. The number of U.S. hires, the sites and the cost are not stated. Whether NVIDIA is the specific customer driving the changes is Yonhap's interpretation. The next checkpoint is the appointments around Dec. 3.
