2026.04.17
Plans have come to light for Samsung Electronics to build a semiconductor packaging plant worth about USD 4 billion (about JPY 600 billion) in Thai Nguyen Province, Vietnam. According to reports from Bloomberg and TrendForce (April 9-10, 2026), the initial investment will be USD 2 billion, specializing in back-end packaging for AI and data center applications. This is a move by Samsung, which entered Vietnam for smartphone manufacturing in 2008, to upgrade Vietnam's position from an "assembly base" to a "high-tech strategic base."
Samsung's semiconductor investment in Vietnam will proceed in stages. Vietnam's Ministry of Finance is coordinating the signing of an MOU, with a formal announcement expected sometime in 2026.
Samsung already has a smartphone plant in Thai Nguyen Province and is the province's largest employer. Being able to make use of existing infrastructure (power, water, logistics) and a pool of skilled labor appears to be the deciding factor in the site selection for the new plant. In addition, Thai Nguyen Province forms part of the "technology belt" around Hanoi that the Vietnamese government has positioned as a hub for developing the semiconductor industry.
Samsung's investment is not an isolated move but part of a larger trend of semiconductor supply chains concentrating in Vietnam.
The US back-end semiconductor leader Amkor already operates one of the world's largest packaging facilities in Bac Ninh Province (near Hanoi), having invested USD 1.6 billion. It handles packaging for Apple's iPhone chips, and stands as a precedent proving that Vietnam is a key node in the global semiconductor supply chain.
Samsung entered Vietnam in 2008, and its cumulative investment now exceeds USD 20 billion. Vietnam is Samsung's largest smartphone production base in the world, manufacturing about half of the company's global shipments there. This latest semiconductor investment extends this existing manufacturing base into "upstream processes."
Manufacturing entry into Vietnam used to often be described as "a way to diversify away from China risk." However, as investments from semiconductor companies such as Amkor, Samsung, and Intel accumulate, Vietnam is shifting from being an "alternative base" to being "a destination chosen in its own right."Da Nang City is also actively courting Japanese companies in the semiconductor and AI fields, and the formation of a semiconductor ecosystem is progressing across Vietnam.
Samsung's USD 4 billion investment carries three implications for Japanese semiconductor-related companies.
Back-end semiconductor packaging requires materials such as substrate materials (ABF substrates, etc.), encapsulants, and bonding wire. Japanese companies hold major global shares in back-end materials — Ajinomoto Fine-Techno (ABF substrates), Sumitomo Bakelite (encapsulants), and Tanaka Kikinzoku (bonding wire), among others. Samsung's Vietnam plant could become a major new customer for these Japanese materials makers.
Packaging plants require dicing equipment, bonding equipment, and test equipment. Japanese equipment makers such as DISCO (dicing), Shinkawa (bonding), and Advantest (test) have a good opportunity to strengthen their sales operations targeting Vietnam. Sumitomo Corporation breaks ground on new industrial park in Thanh Hoa Province is underway, among other developments, and the infrastructure for Japanese companies' manufacturing investment in Vietnam is also falling into place.
Samsung's investment is a signal that Vietnam is being upgraded from a "low-cost assembly base" to a "strategic base for advanced packaging." It's worth considering a similar upgrade for the existing manufacturing bases Japanese companies already have in Vietnam. In particular, demand for AI and data-center semiconductors is expected to keep growing beyond 2027, and the value of Vietnam as a base will rise over the medium to long term. This also coincides with the timing of the Japanese and Vietnamese governments announcing cooperation on a "new phase," so policy support can also be expected.
What Samsung's USD 4 billion investment symbolizes is the fact that Vietnam is evolving from "a place that assembles with cheap labor" into "a place that handles advanced semiconductor processes." With Amkor's USD 1.6 billion and Samsung's USD 4 billion, more than USD 5 billion in back-end packaging investment alone is now concentrated in Vietnam.
For Japanese semiconductor-related companies, Vietnam is a base that should be redefined not as "a substitute for China" but as "a manufacturing ecosystem that will support the next stage of growth." The time has come to deepen ties with Vietnam across materials, equipment, and talent development.
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