Samsung Electronics will invest 39 trillion dong, or about $1.5bn, in a semiconductor testing plant in Vietnam, according to a document seen by Reuters on Wednesday. Construction has already begun in an industrial park 60 kilometres north of Hanoi, with operations scheduled to start in November 2027.
The plant will be Samsung’s first dedicated chip-testing facility in Vietnam.
The numbers attached to the project are larger than the headline. The facility is sized to deliver 153.3 billion gigabits a year of DRAM and a further 255.6 billion gigabits of NAND.
Samsung has also indicated it intends to reinvest profits from the project, “if any,” up to a further $2.5bn for a potential second facility, bringing the total committed and contingent footprint to roughly $4bn. Vietnamese authorities approved the first phase in March; the contingent expansion remains subject to project performance.
Testing, in chip-industry terms, sits between wafer fabrication and final assembly. It is the step at which every memory die produced upstream is verified, binned by performance and prepared for packaging.
Capacity in that part of the chain has been an industry-wide bottleneck through 2025 and 2026 as demand for AI-grade memory has run well ahead of installed test infrastructure. Samsung’s Vietnam plant addresses that constraint directly without committing to the higher capital expenditure of a new wafer fab.
The site selection is also a geopolitical signal. Vietnam has spent the past three years actively soliciting chip-supply-chain investment as part of a broader strategy to position itself as a Southeast Asian semiconductor hub.
Samsung is already the largest single foreign investor in Vietnam, with cumulative commitments above $23bn across consumer-electronics manufacturing, R&D and supplier operations. The new plant deepens that footprint at exactly the moment US tariff policy has begun pushing chip-supply-chain decisions away from mainland China.
For Samsung specifically, the timing also lands inside a difficult domestic moment. The company has spent the past several weeks managing a labour dispute at home in which the memory division’s bonus structure has become a source of internal friction.
A non-chip union filed an injunction at Suwon District Court on Tuesday in an attempt to block the wider workforce vote on the bonus formula. The Vietnam announcement, made through a filing rather than via press release, lands as a quieter signal that Samsung’s chip-side investment plans are continuing regardless of the labour-policy noise in Korea.
Vietnam is, on the current numbers, becoming an unexpectedly central node in the global chip-supply diversification story. TSMC has opened a packaging facility in the country; Intel has been expanding its Ho Chi Minh City assembly site; Amkor is operating its Bac Ninh plant at well above plan. Samsung’s 60-kilometre-north-of-Hanoi site sits inside that pattern.
The cumulative effect, over the next three to four years, is the emergence of a Vietnamese back-end semiconductor cluster credible enough that some Western buyers will be able to source assembly, test and packaging entirely outside mainland China for the first time since the late 1990s.
Samsung declined to comment on the Reuters document. The Vietnamese government has confirmed the approval but not commented on the second-phase contingency. Construction is reportedly proceeding on schedule, with first equipment installation expected in the second quarter of 2027.
