AMENDMENT TO KUN-MORTGAGE AGREEMENT (Increase of the Maximum Mortgage Amount)

Exhibit 10.42

[English Translation]

Stamp

Duty

Team

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Manager

Assistant

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Manager

AMENDMENT TO KUN-MORTGAGE AGREEMENT

(Increase of the Maximum Mortgage Amount)

Creditor & Mortgagee: The Korea Development Bank

Obligor: Magnachip Semiconductor, Ltd.

Mortgagor: Magnachip Semiconductor, Ltd.

Description of the Mortgaged Property: Same as listed in Attachment

1. The Mortgagor and the Obligor, in order to secure their obligations to the Creditor, agree to modify the existing mortgage previously established on the Mortgaged Property pursuant to the Kun-Mortgage Agreement dated March 26, 2024, recorded with the Gumi Registry Office of the Daegu District Court on March 26, 2024, under Filing No. 12868.

Pursuant to this Amendment, the maximum mortgage amount shall be increased from Sixty Billion Won (W60,000,000,000) to One Hundred Billion Won (W100,000,000,000).

2. Except as expressly modified herein, all other terms and conditions of the original Kun-Mortgage Agreement shall remain in full force and effect.

December 8, 2024


Creditor & Mortgagee:		The Korea Development Bank [corporate seal stamped]
Address		▇▇, ▇▇▇▇▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇-▇▇, ▇▇▇▇▇, ▇▇▇▇▇▇▇▇ ▇▇ ▇▇▇▇▇ (Branch: Cheongju Branch) Authorized Agent Raehyeon Park
Obligor & Mortgagor:		Magnachip Semiconductor, Ltd.
Address		▇▇ ▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇▇▇▇-▇▇▇ ▇▇▇▇▇▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇, ▇▇▇▇▇ ▇▇▇▇▇ Representative Director /s/ ▇▇▇▇▇-▇▇▇▇ ▇▇▇ [corporate seal stamped]

Seal

compared by

[English Translation]

Legal Description of Real Estate Property

Land

Identification No[1760-1996-090403]

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Factory site 39,574.4m²

Land

Identification No[1760-2007-003222]

▇▇▇-▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Miscellaneous land 3,812.8m²

Land

Identification No[1760-2007-003223]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Factory site 35,489.7m²

Land

Identification No[1760-2007-003218]

▇▇▇-▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Miscellaneous land 1,200.4m²

Land

Identification No[1760-2009-008403]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Building land 23,087m²

Land

Identification No[1760-2007-003199]

▇▇▇-▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Miscellaneous land 1,033.2m²

Building

Identification No[1760-1996-091033]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

1-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete 5-story factory building with slab roof

Basement Machine room, electrical room, shelter 4,482m²

1^st floor Cafeteria 5,294.75m²

2^nd floor Factory 3,327m²

3^rd floor Factory 8,982m²

4^th floor Factory 8,982m²

5^th floor Factory 8,982m²

Rooftop 972m²

Lightweight steel frame single-story storage 12.5m²

Block single-story factory with silicon steel plate roof on truss (Waste storage) 428.40m²

Lightweight steel frame single-story factory with sandwich panel roof (Pump room) 75 m²

[English Translation]

Building

Identification No[1760-2007-001927]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

2-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete 2-story factory building with slab roof and prefabricated panel roof

1^st floor Office and air-conditioning machine room 2,554.15m²

1^st floor Factory 1,843.2m²

1^st floor Factory 1,479.26m²

1^st floor Factory 140.1m²

1^st floor Factory (storage) 84.21m²

1^st floor Factory (storage) 67.21m²

2^nd floor Factory 1,843.2m²

2^nd floor Factory 1,354.14m²

Rooftop 115.2m²

Building

Identification No[1760-2007-001926]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

3-dong

Reinforced concrete 2-story factory building with slab roof

1^st floor Factory and office 4,927.6m²

2^nd floor Factory and office 599.04m²

1^st floor Factory 438.96m²

2^nd floor Factory 3,473.2m²

Rooftop 270.76m²

10.

Building

Identification No[1760-1996-091031]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

4-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete 5-story factory building with slab roof

Basement Dormitory 1,488.34m²

1^st floor Dormitory 1435.55m²

2^nd floor Dormitory 1,004.495m²

3^rd floor Dormitory 1,004.495m²

Rooftop 26.22m²

1^st floor Dormitory 410.4m²

2^nd floor Dormitory 592.8m²

3^rd floor Dormitory 619.02m²

4^th floor Dormitory 619.02m²

5^th floor Dormitory 619.02m²

Rooftop 78.66m²

2^nd floor Dormitory 26.22m²

4^th floor Dormitory 978.275m²

5^th floor Dormitory 1,004.495m²

Rooftop 93.48m²

[English Translation]

11.

Building

Identification No[1760-2004-005345]

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5-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete 2-story factory building with slab roof

1^st floor Machine room 1,022.44m²

1^st floor Machine room 1,075.48m²

2^nd floor Machine room 402.14m²

1^st floor Boiler room 1,075.92m²

2^nd floor Boiler room 374m²

12.

Building

Identification No[1760-1996-091034]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

8-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete single-story factory building with sandwich panel flat slab roof on truss

Basement Machine room 73.83m²

1^st floor Control room 111.60m²

13.

Building

Identification No[1760-2004-005344]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

9-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete single-story factory building with steel-plate roof

1^st floor Dangerous goods storage 288m²

1^st floor Dangerous goods storage 377.6m²

14.

Building

Identification No[1760-2004-005349]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

10-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete single-story factory building with steel-plate roof (Dangerous goods storage) 288m²

15.

Building

Identification No[1760-2009-008404]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

11-dong

Reinforced concrete single-story factory building with slate roof (Plating room) 172.8m²

[English Translation]

16.

Building

Identification No[1760-2004-005412]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

12-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete single-story factory building with slab roof

Basement Industrial water tank 421.5m²

1^st floor Industrial water tank 13.5m²

17.

Building

Identification No[1760-2004-005411]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

13-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Basement of reinforced concrete factory building with slab roof 671.77m²

18.

Building

Identification No[1760-2004-005414]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

14-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Lightweight steel frame 2-story factory building with slab roof

1^st floor F.A.B storage 83.86m²

2^nd floor F.A.B storage 83.86m²

19.

Building

Identification No[1760-2007-001929]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

15-dong

Lightweight steel frame single-story factory building with prefabricated panel roof

Security office 324m²

20.

Building

Identification No[1760-2004-005350]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

16-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Lightweight steel frame single-story factory building with panel roof on truss 270m²

21.

Building

Identification No[1760-1999-007320]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

17-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete single-story factory building with prefabricated panel roof 288m²

[English Translation]

22.

Building

Identification No[1760-2005-008712]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

18-dong

Steel-framed single-story factory with grass wool panel roof (Gym) 1,218.42m²

23.

Building

Identification No[1760-2020-000803]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

19-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Reinforced concrete single-story factory building with panel roof (Dangerous goods storage and processing facilities)

1^st floor High-pressure gas reservoir 103.5m²

24.

Building

Identification No[1760-2022-003006]

▇▇▇, ▇▇▇▇-▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

20-dong

[Road Name Address] ▇▇▇, ▇▇▇▇▇▇-▇▇▇▇▇, ▇▇▇▇-▇▇, ▇▇▇▇▇▇▇▇▇▇▇▇▇-▇▇

Steel-framed single-story factory

1^st floor Factory (Machine room) 320m²

AMENDMENT TO KUN-MORTGAGE AGREEMENT (Increase of the Maximum Mortgage Amount)

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