LG Innotek signed a memorandum of understanding with the city of Haiphong on June 4, 2026, to establish a semiconductor substrate production facility in northern Vietnam. The new plant will span approximately 330,000 square meters - roughly the size of 45 football fields - with construction scheduled to begin in July 2026 and completion targeted for May 2027. The investment will be funded directly by LG Innotek's existing Vietnamese subsidiary.
The facility will produce three categories of advanced semiconductor substrates: RF-SiP (radio frequency system-in-package), FC-CSP (flip chip-chip scale package), and FC-BGA (flip chip-ball grid array). Each addresses a distinct and growing segment of global semiconductor demand. RF-SiP adoption is expected to accelerate with 5G rollout and the eventual transition to 6G. FC-CSP growth is driven by on-device AI applications requiring low-power, high-performance chips. FC-BGA demand is sustained by the continued buildout of AI server and data center infrastructure by global technology companies.
LG Innotek's reasoning for selecting Haiphong is instructive. The company cited its established operational track record in the city, the maturity of local infrastructure, and - critically - geographic proximity to major semiconductor back-end processing companies. That last point reflects something important about how Haiphong's industrial ecosystem has evolved: it is no longer just a manufacturing location for individual companies, but a cluster where supply chain adjacency creates operational advantages.
Cost competitiveness remains a factor, but it is no longer the primary driver. LG Innotek's Gumi facility in South Korea is operating near full capacity, and the company has set an explicit target of scaling its package solutions business to over 3 trillion won in annual revenue by 2030. Haiphong is where the incremental capacity needed to reach that target will be built.
LG Innotek's total registered investment in Vietnam has exceeded $8 billion, spanning optical solutions for smartphones, semiconductor substrates, and automotive components. The company has stated its ambition to make Vietnam a hub for 70–80% of its camera module output, and the V3 factory expansion has already doubled its camera module capacity in the country. The substrate facility marks a further step: from high-volume electronics assembly into advanced semiconductor components with tighter technical specifications and higher margins.
The LG Innotek announcement is the latest addition to a pattern of semiconductor investment taking shape in northern Vietnam. Samsung is building its first chip testing plant in the country. Qualcomm has established its third-largest global R&D center in Hanoi. Mutek Technology has broken ground on upstream equipment manufacturing in Quang Ninh. LG Innotek now adds advanced substrate production - FC-BGA components that require precision manufacturing tolerances at the higher end of the packaging value chain, with demand rising alongside sustained AI infrastructure investment globally.
Vietnam's northern industrial corridor - Haiphong, Bac Ninh, Thai Nguyen, Quang Ninh - is accumulating semiconductor investment across multiple layers of the value chain simultaneously, compressing a development timeline that took comparable regional hubs significantly longer to build. For investors evaluating the semiconductor supply chain in Southeast Asia, the corridor is no longer an emerging option - it is an established one that continues to deepen.
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