SK hynix plans ₩19.1T M17 fab in Cheongju

SK hynix Inc. plans a major new facility investment to construct a semiconductor fabrication plant, “M17,” in Cheongju, Korea.

Rhea-AI Filing Summary

SK hynix Inc. plans a major new facility investment to construct a semiconductor fabrication plant, “M17,” in Cheongju, Korea. The board of directors approved this project on August 7, 2026 to secure mid- to long-term production capacity in response to demand for memory semiconductors.

The investment amount is ₩19,100,000,000,000, equal to 15.83% of the Company’s total equity of ₩120,666,750,890,698 based on consolidated financial statements as of December 31, 2025, and is classified as a large-scale corporation investment. The investment period is projected from August 7, 2026 to April 30, 2031, and both the amount and schedule may change depending on project progress and business conditions. All six independent directors were present for the board resolution.

Key Figures

Investment Amount: ₩19,100,000,000,000 Company’s Total Equity: ₩120,666,750,890,698 Investment to Equity Ratio: 15.83% +4 more

7 metrics

Investment Amount ₩19,100,000,000,000 Planned construction cost for M17 fab in Cheongju, Korea

Company’s Total Equity ₩120,666,750,890,698 Consolidated total equity as of December 31, 2025

Investment to Equity Ratio 15.83% Investment amount as a percentage of total equity

Investment Start Date August 7, 2026 Projected start date of the M17 investment period

Investment End Date April 30, 2031 Projected end date of the M17 investment period

Board Resolution Date August 7, 2026 Date the board of directors approved the investment

Independent Directors Present 6 Number of independent directors attending the approval meeting

Key Terms

New facility investment, Large-scale Corporation, consolidated financial statements, Investment Amount (Won), +1 more

5 terms

New facility investment financial

"Type of Investment | | New facility investment - Investment Target"

Large-scale Corporation regulatory

"Large-scale Corporation | | Applicable"

consolidated financial statements financial

"based on the consolidated financial statements as of the end"

Consolidated financial statements combine the financial results of a parent company and all the companies it controls into one set of reports, like showing the whole family’s budget instead of each person’s separate accounts. For investors this matters because it gives a complete picture of assets, debts, revenue and cash flow across the entire group, helping assess true size, risk and profitability without missing or double-counting related activity.

Investment Amount (Won) financial

"Investment Amount (Won) | | 19,100,000,000,000"

mid- to long-term production capacity financial

"Securing mid- to long-term production capacity in response"

FAQ

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

What new investment did SK hynix (SKHY) approve in August 2026?

SK hynix approved a new facility investment to construct the “M17” semiconductor fabrication plant in Cheongju, Korea. This project is aimed at expanding mid- to long-term production capacity for memory semiconductors.

How much is SK hynix (SKHY) investing in the M17 fab project?

The company plans to invest ₩19,100,000,000,000 in constructing the M17 fab. This amount represents a significant capital commitment to future memory semiconductor production capacity in Cheongju, Korea.

How significant is the M17 investment for SK hynix (SKHY) relative to equity?

The M17 investment equals 15.83% of SK hynix’s total equity of ₩120,666,750,890,698 as of December 31, 2025. This highlights the project’s large scale compared with the company’s existing capital base.

What is the planned timeline for SK hynix (SKHY) M17 fab construction?

The investment period is projected from August 7, 2026 to April 30, 2031. The company notes that both the start and end dates may change as the investment progresses and business conditions evolve.

What is the stated purpose of the SK hynix (SKHY) M17 investment?

The purpose is to secure mid- to long-term production capacity in response to demand for memory semiconductors. The new M17 fab is intended to support future market needs in this segment.

What board approval details were disclosed for SK hynix (SKHY) M17 project?

The board approved the investment on August 7, 2026, with six independent directors present and none absent. This resolution formally authorizes the company to proceed with the M17 fab investment.

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

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Available on EDGAR 08/07/2026 - 06:06 AM Accepted by SEC EDGAR 08/07/2026 - 06:04 AM Learn about SEC filing dates

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE MONTH OF AUGUST 2026

Commission File Number: 001-43391

SK hynix Inc.

(Translation of registrant’s name into English)

2091, Gyeongchung-daero

Bubal-eup, Icheon-si

Gyeonggi-do 17336, Korea

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☒   Form 40-F ☐

New Facility Investment

On August 7, 2026, in order to secure mid- to long-term production capacity in response to demand for memory semiconductors, the board of directors of SK hynix Inc. (the “Company”) approved the investment for the construction of a fab called “M17” in Cheongju, Korea (the “Investment”). Details of the Investment are as follows:

1. Type of Investment				New facility investment
- Investment Target				Construction of M17 in Cheongju, Korea
2. Details of Investment		Investment Amount (Won)		19,100,000,000,000
		The Company’s Total Equity (Won)		120,666,750,890,698
		Ratio of Investment Amount to the Company’s Total Equity as of December 31, 2025 (%)		15.83
		Large-scale Corporation		Applicable
3. Purpose of Investment				Securing mid- to long-term production capacity in response to demand for memory semiconductors
4. Investment Period		Start Date		August 7, 2026
		End Date		April 30, 2031
5. Date of Resolution by the Board of Directors (Determination Date)				August 7, 2026
- Attendance of Independent Directors				Present: 6; Absent: 0
6. Other Important Matters Relating to Investment Decision				-   The “Company’s Total Equity (Won)” set forth in Item 2 above is based on the consolidated financial statements as of the end of the most recent fiscal year. -   The “Investment Amount (Won)” set forth in Item 2 above may be subject to change depending on the progress of the Investment and changes in the business environment. -   The “Start Date” and the “End Date” set forth in Item 4 above are projected dates that remain subject to change in the course of the implementation of the Investment.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

SK hynix Inc.
(Registrant)
By:		/s/ Seonghwan Park

(Signature)
Name:		Seonghwan Park
Title:		Head of Investor Relations

Date: August 7, 2026