Micron Completes Acquisition of PSMC’s Tongluo P5 Site in Taiwan

Micron (Nasdaq: MU) completed its acquisition of Powerchip’s P5 Tongluo site in Taiwan on March 15, 2026, adding an existing ~300,000 square feet of 300mm cleanroom space to its Taichung mega campus.

Rhea-AI Summary

Micron (Nasdaq: MU) completed its acquisition of Powerchip’s P5 Tongluo site in Taiwan on March 15, 2026, adding an existing ~300,000 square feet of 300mm cleanroom space to its Taichung mega campus.

Retrofitting begins in March 2026, the site is slated to support meaningful product shipments beginning in fiscal 2028, and Micron plans a second facility of about 270,000 square feet with construction starting by the end of fiscal 2026.

Positive

• 300,000 sq ft of existing 300mm cleanroom space added
• Support for meaningful product shipments beginning in fiscal 2028
• Planned additional 270,000 sq ft cleanroom with construction by end of fiscal 2026

Negative

• New site won't support shipments until fiscal 2028, delaying near-term supply impact

Argus Mar 16 session

+3.68% close to close Open Argus

Details

News Market Reaction – MU

On Mar 16, the first trading day after this news, MU closed 3.68% above the previous close.

Data tracked by StockTitan Argus for the Mar 16 session.

Market Context

This announcement completes Micron’s acquisition of PSMC’s Tongluo P5 site, adding 300,000 sq ft of ...

Analysis

This announcement completes Micron’s acquisition of PSMC’s Tongluo P5 site, adding 300,000 sq ft of 300mm cleanroom capacity with plans for another 270,000 sq ft. The site supports leading-edge DRAM and HBM output, with meaningful shipments targeted for fiscal 2028. It follows the earlier US$1.8 billion LOI and complements a separate US$24 billion Singapore fab plan. Investors may watch execution milestones, retrofit progress, and ramp timelines against rising AI-related memory demand.

Key Figures

Existing cleanroom space: 300,000 sq ft Planned additional cleanroom: 270,000 sq ft Distance to Taichung campus: 15 miles +5 more

Existing cleanroom space

300,000 sq ft

Tongluo P5 site in Taiwan

Planned additional cleanroom

270,000 sq ft

Second Tongluo facility of comparable scale

Distance to Taichung campus

15 miles

Tongluo site proximity to existing Taiwan mega campus

Shipments timeline

Fiscal 2028

Meaningful product shipments from existing Tongluo fab

Second facility start

End of fiscal 2026

Construction start for second Tongluo cleanroom

Tongluo site price

US$1.8 billion

LOI to acquire P5 Tongluo fabrication site (Jan 17, 2026)

Singapore fab investment

US$24 billion

10-year planned investment in new Singapore facility

Singapore cleanroom space

700,000 sq ft

Planned additional space at new Singapore fab

Historical Context

5 past events · Latest: Mar 03

5 events

1. Mar 03

   Product launch

   24h Move

   -8.0%

   Announced first 256GB LPDRAM SOCAMM2 samples for AI and HPC servers.

2. Feb 24

   Earnings scheduling

   24h Move

   +2.6%

   Set date and time for upcoming fiscal Q2 2026 earnings call.

3. Jan 27

   Investor conference

   24h Move

   +6.1%

   Announced participation in Wolfe conference focused on autos, tech and semis.

4. Jan 26

   Capacity expansion

   24h Move

   +5.4%

   Broke ground on US$24B Singapore fab adding 700,000 sq ft cleanroom space.

5. Jan 17

   Site acquisition LOI

   24h Move

   +0.6%

   Signed LOI to acquire Tongluo P5 fab and form partnership with PSMC.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

cleanroom, 300mm, dram, schedule 13g, +3 more

7 terms

cleanroom technical

"The site includes approximately 300,000 square feet of existing 300mm cleanroom space"

A cleanroom is a tightly controlled workspace where air, particles, microbes, temperature and humidity are kept within strict limits to prevent contamination during manufacturing, testing or research—commonly used for pharmaceuticals, biotech, medical devices and semiconductors. Investors care because a well-designed and operated cleanroom reduces product defects, supports regulatory approval and enables reliable scale-up; think of it as a sterile kitchen that protects delicate recipes, lowering recall risk and helping preserve revenue and margins.

300mm technical

"The site includes approximately 300,000 square feet of existing 300mm cleanroom space"

300mm denotes a 300-millimeter diameter silicon wafer used to manufacture semiconductor chips. Think of it like swapping a small pizza for a large one: a bigger wafer yields more chips per manufacturing run, which can lower cost per chip and improve factory efficiency. For investors, a company’s use or capacity of 300mm tooling signals modern production scale, potential cost advantages, and substantial capital investment in chipmaking facilities.

dram technical

"expand supply of leading-edge DRAM products, including HBM, to meet growing AI-driven demand"

A dram is a small, traditional unit used to measure either mass or liquid volume in manufacturing and pharmaceuticals — roughly 1.77 grams for a weight dram or about 3.7 milliliters for a fluid dram, similar to a small teaspoon or a couple of drops. Investors care because dram-based measurements affect drug dosing, packaging sizes, labeling compliance and raw-material usage, which in turn influence production costs, inventory counts and regulatory risk.

schedule 13g regulatory

"filed an amended Schedule 13G reporting beneficial ownership of 58,472,522 shares"

A Schedule 13G is a formal document that investors file with the government when they acquire a large ownership stake in a company, usually for investment purposes rather than control. It helps keep the public informed about who owns significant parts of a company's shares, which can influence how the company is managed and how investors make decisions. Filing this schedule is important for transparency and understanding the ownership landscape of publicly traded companies.

rule 144 regulatory

"filed a Rule 144 notice to sell 25,000 shares through Morgan Stanley Smith Barney"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

View in glossary

rule 10b5-1 regulatory

"sales were carried out under a pre‑arranged Rule 10b5‑1 trading plan adopted"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

restricted stock units financial

"269 Restricted Stock Units converted into the same number of Micron common shares"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Existing cleanroom retrofit to begin in March with plans to begin construction of a similar-sized second cleanroom at this site by the end of fiscal 2026

BOISE, Idaho, March 15, 2026 (GLOBE NEWSWIRE) -- Micron Technology, Inc. (Nasdaq: MU) today announced it has completed the acquisition and assumed ownership of Powerchip Semiconductor Manufacturing Corporation’s (PSMC) P5 site in Tongluo, Miaoli County, Taiwan, under the acquisition agreement previously announced on January 17, 2026.

The new site will complement Micron’s existing operations in Taiwan as an extension of the company’s vertically integrated mega campus in Taichung, located approximately 15 miles away. The site includes approximately 300,000 square feet of existing 300mm cleanroom space and will support Micron’s efforts to expand supply of leading-edge DRAM products, including HBM, to meet growing AI-driven demand.

Micron began preparations for the new Tongluo site following the deal announcement in January 2026 and will begin retrofitting the existing cleanroom now that the transaction has been completed. The new Tongluo site is expected to support meaningful product shipments from the existing fab beginning in fiscal 2028. The company is also planning the next phase of expansion at the site, with construction set to begin by the end of fiscal 2026 on a second facility of comparable scale, adding approximately 270,000 square feet of cleanroom space.

“The Tongluo facility complements our Taiwan operations and is a critical component of our global expansion plans,” said Manish Bhatia, executive vice president of global operations at Micron Technology. “Memory is a strategic asset that dictates AI product performance, and the acquisition and phased ramp of this site strengthens our ability to capitalize on these significant opportunities. We appreciate the strong collaboration from the Taiwan government, our construction partners, and equipment and materials suppliers to enable and accelerate the ramp of our production capacity at this site.”

Micron thanks PSMC, the Taiwan central government, including the Ministry of Economic Affairs, National Science and Technology Council, and Hsinchu Science Park, as well as Miaoli County Government, for their strong support, collaboration to ensure a swift and successful acquisition process, and commitment in enabling the new site, leveraging the efficiency and speed of execution fueled by the world-class semiconductor manufacturing ecosystem in Taiwan.

About Micron Technology, Inc. 

Micron Technology, Inc. is an industry leader in innovative memory and storage solutions transforming how the world uses information to enrich life for all. With a relentless focus on our customers, technology leadership, and manufacturing and operational excellence, Micron delivers a rich portfolio of high-performance DRAM, NAND, and NOR memory and storage products. Every day, the innovations that our people create fuel the data economy, enabling advances in artificial intelligence (AI) and compute-intensive applications that unleash opportunities — from the data center to the intelligent edge and across the client and mobile user experience. To learn more about Micron Technology, Inc. (Nasdaq: MU), visit micron.com. 

Forward-Looking Statements 

This press release contains forward-looking statements, including expectations as to when meaningful product shipments will begin at the Tonglou site, the timing of future construction plans for the Tonglou site, and the ability of Micron’s global expansion plans to address product demand growth. These forward-looking statements are subject to a number of risks and uncertainties that could cause actual results to differ materially. Please refer to the documents Micron files with the Securities and Exchange Commission, specifically its most recent Form 10-K and Form 10-Q. These documents contain and identify important factors that could cause actual results to differ materially from those contained in these forward-looking statements. These certain factors can be found at https://investors.micron.com/risk-factor. Although Micron believes that the expectations reflected in the forward-looking statements are reasonable, Micron cannot guarantee future results, levels of activity, or achievements. Micron is under no duty to update any of the forward-looking statements after the date of this press release to conform these statements to actual results. 

© 2026 Micron Technology, Inc. All rights reserved. Information, products, and/or specifications are subject to change without notice. Micron, the Micron logo, and all other Micron trademarks are the property of Micron Technology, Inc. All other trademarks are the property of their respective owners.  

Micron Media Relations Contact   
Mark Plungy
+1 (408) 203-2910
corpcomms@micron.com  

Micron Investor Relations Contact  
Satya Kumar  
+1 (408) 450-6199  
satyakumar@micron.com  
  

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Micron (MU) acquire in Taiwan on March 15, 2026?

Micron acquired PSMC’s Tongluo P5 site, adding about 300,000 sq ft of 300mm cleanroom space. According to the company, the site complements its Taichung mega campus and expands DRAM production capacity for AI demand.

When will the Tongluo site begin supporting Micron (MU) product shipments?

The Tongluo site is expected to support meaningful product shipments beginning in fiscal 2028. According to the company, retrofitting begins in March 2026 to prepare the existing cleanroom for production.

What expansion does Micron (MU) plan at the Tongluo site and by when?

Micron plans a second facility of comparable scale adding ~270,000 sq ft of cleanroom space, with construction set to begin by the end of fiscal 2026. According to the company, this is a phased expansion.

How does the Tongluo acquisition affect Micron’s DRAM capacity for AI (MU)?

The acquisition adds cleanroom capacity aimed at increasing leading-edge DRAM and HBM supply for AI. According to the company, the site strengthens capacity and complements its Taichung operations about 15 miles away.

When will Micron (MU) start retrofit work at the acquired Tongluo P5 site?

Micron will begin retrofitting the existing cleanroom in March 2026. According to the company, preparations began after the January 2026 announcement and continue now that ownership is complete.