EXHIBIT 99.1

This Fifteenth Amended and Restated Agreement made by the undersigned persons certifies that each undersigned person agrees that the Schedule 13D/A, and all amendments thereto, to which this Exhibit 99.1 is attached, is filed on behalf of each of them and the Group. The “Group” (as defined in Rule 13d-5(b)) may be deemed to be composed of the following persons:

• James J. Kim

• James J. Kim, as Trustee

• Agnes C. Kim

• John T. Kim

• John T. Kim, as Trustee

• David D. Kim

• David D. Kim, as Trustee

• Susan Y. Kim

• Susan Y. Kim, as Trustee

• John T. Kim Trust of December 31, 1987

• Trust of Susan Y. Kim dated 4/16/98 for the benefit of Alexandra Kim Panichello

• Trust of Susan Y. Kim dated 4/16/98 for the benefit of Jacqueline Mary Panichello

• Trust of Susan Y. Kim dated 4/16/98 for the benefit of Dylan James Panichello

• Irrevocable Deed of Trust of James J. Kim for Jacqueline Mary Panichello dated 10/3/94

• Irrevocable Deed of Trust of James J. Kim for Alexandra Kim Panichello dated 12/24/92

• Irrevocable Deed of Trust of James J. Kim for Dylan James Panichello dated 10/15/01

• Irrevocable Deed of Trust of James J. Kim for Allyson Lee Kim dated 10/15/01

• Irrevocable Deed of Trust of James J. Kim FBO Jason Lee Kim dated 11/17/03

• Irrevocable Deed of Trust of James J. Kim f/b/o Children of David D. Kim dated 11/11/05

• James J. Kim 2008 Trust FBO Alexandra Kim Panichello and Descendants dated 2/5/08

• James J. Kim 2008 Trust FBO Jacqueline Mary Panichello and Descendants dated 2/5/08

• James J. Kim 2008 Trust FBO Dylan James Panichello and Descendants dated 2/5/08

• James J. Kim 2008 Trust FBO Descendants of John T. Kim dated 2/5/08

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• James J. Kim 2008 Trust FBO Descendants of David D. Kim dated 2/5/08

• The James & Agnes Kim Foundation, Inc.

• 915 Investments, LP

• John T. Kim 2007 Children’s Trust U/A dated 12/28/07

• Sujoda Investments, LP

• Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dated 8/29/18

• John T. Kim 2012 Generation-Skipping Trust U/A Dated 12/11/12

• Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement dated 2/6/18

• Family Trust under the John T. Kim 2012 Irrevocable Trust Agreement dated 12/11/12

• James J. Kim 2014 Qualified Annuity Trust U/A Dated 10/13/14

• James J. Kim 2018-1 Qualified Annuity Trust U/A Dated 8/30/18

• Susan Y. Kim 2015 Irrevocable Trust U/A Dated March 16, 2015

• Family Trust Under the Susan Y. Kim 2012 Irrevocable Trust Agreement dated 7/26/12

• Sujochil, LP

• James J. Kim 2019-1 Qualified Annuity Trust U/A Dated 9/10/19

• James J. Kim 2020-1 Qualified Annuity Trust U/A Dated 4/1/20

• Qualified Annuity Trust Under the Susan Y. Kim 2020-1 Irrevocable Trust Agreement dtd 04/01/20

• Agnes C. Kim 2020-1 Qualified Annuity Trust U/A Dated 12/16/20

[Signature Page Follows]

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Each undersigned further agrees the information as it pertains to each undersigned is accurate and complete and that each undersigned has no knowledge or reason to believe that information as it relates to the other persons making this filing is inaccurate.

Dated as of March 11, 2021

/s/ James J. Kim

James J. Kim

/s/ James J. Kim

James J. Kim, as Trustee

/s/ Agnes C. Kim

Agnes C. Kim

/s/ John T. Kim

John T. Kim

/s/ John T. Kim

John T. Kim, as Trustee

/s/ Kenneth R. Hillier, as Attorney in Fact

David D. Kim

/s/ Kenneth R. Hillier, as Attorney in Fact

David D. Kim, as Trustee

/s/ Susan Y. Kim

Susan Y. Kim

/s/ Susan Y. Kim

Susan Y. Kim, as Trustee

John T. Kim Trust of December 31, 1987

By:	/s/ John T. Kim
	John T. Kim, as Trustee

Trust of Susan Y. Kim dated 4/16/98 for the benefit of Alexandra Kim Panichello

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Trust of Susan Y. Kim dated 4/16/98 for the benefit of Jacqueline Mary Panichello

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

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Trust of Susan Y. Kim dated 4/16/98 for the benefit of Dylan James Panichello

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Irrevocable Deed of Trust of James J. Kim for Jacqueline Mary Panichello dated 10/3/94

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Irrevocable Deed of Trust of James J. Kim for Alexandra Kim Panichello dated 12/24/92

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Irrevocable Deed of Trust of James J. Kim for Dylan James Panichello dated 10/15/01

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Irrevocable Deed of Trust of James J. Kim for Allyson Lee Kim dated 10/15/01

By:	/s/ John T. Kim
	John T. Kim, as Trustee

Irrevocable Deed of Trust of James J. Kim FBO Jason Lee Kim dated 11/17/03

By:	/s/ John T. Kim
	John T. Kim, as Trustee

Irrevocable Deed of Trust of James J. Kim f/b/o Children of David D. Kim dated 11/11/05

By:	/s/ Kenneth R. Hillier, as Attorney in Fact
	David D. Kim, as Trustee

James J. Kim 2008 Trust FBO Alexandra Kim Panichello and Descendants dated 2/5/08

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

James J. Kim 2008 Trust FBO Jacqueline Mary Panichello and Descendants dated 2/5/08

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

James J. Kim 2008 Trust FBO Dylan James Panichello and Descendants dated 2/5/08

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

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James J. Kim 2008 Trust FBO Descendants of John T. Kim dated 2/5/08

By:	/s/ John T. Kim
	John T. Kim, as Trustee

James J. Kim 2008 Trust FBO Descendants of David D. Kim dated 2/5/08

By:	/s/ Kenneth R. Hillier, as Attorney in Fact
	David D. Kim, as Trustee

The James and Agnes Kim Foundation, Inc.

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Secretary

915 Investments, LP

By:	/s/ James J. Kim
	James J. Kim, as general partner

John T. Kim 2007 Children’s Trust U/A dated 12/28/07

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Sujoda Investments, LP

By: Sujoda Management, LLC, its general partner

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Manager

Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd 8/29/18

By:	/s/ James J. Kim
	James J. Kim, as Trustee

John T. Kim 2012 Generation-Skipping Trust U/A Dated 12/11/12

By:	/s/ James J. Kim
	James J. Kim, as Trustee

Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement dated 2/6/18

By:	/s/ John T. Kim
	John T. Kim, as Trustee

Family Trust under the John T. Kim 2012 Irrevocable Trust Agreement dated 12/11/12

By:	/s/ James J. Kim
	James J. Kim, as Trustee

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James J. Kim 2014 Qualified Annuity Trust U/A dated 10/13/14

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

James J. Kim 2018-1 Qualified Annuity Trust U/A dated 8/30/18

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Susan Y. Kim 2015 Irrevocable Trust U/A Dated March 16, 2015

By:	/s/ John T. Kim
	John T. Kim, as Trustee

Family Trust Under the Susan Y. Kim 2012 Irrevocable Trust Agreement dated 7/26/12

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Sujochil, LP

By:	/s/ John T. Kim
	John T. Kim, as General Partner

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as General Partner

James J. Kim 2019-1 Qualified Annuity Trust U/A Dated 9/10/19

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

James J. Kim 2020-1 Qualified Annuity Trust U/A Dated 4/1/20

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Qualified Annuity Trust Under the Susan Y. Kim 2020-1 Irrevocable Trust Agreement dtd 04/01/20

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

Agnes C. Kim 2020-1 Qualified Annuity Trust U/A Dated 12/16/20

By:	/s/ Susan Y. Kim
	Susan Y. Kim, as Trustee

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