Lyondell Chemical 401(k) and pension plans

Lyondell Chemical Company, Houston, TX. EIN 95-4160558. Annual reports 2009–2025. Also filed as Millennium America Holdings Inc.

Lyondell Chemical Company has 2 active retirement plans on file. The largest is the Lyondellbasell Savings Plan, with 10,040 participants and $3.0 billion in assets in 2025. Fidelity has been its recordkeeper since 2009.

Active plans: 2
Participants: 24,092
Plan assets: $3.9 billion
401(k) recordkeeper: Fidelity
Plans on file: 5
Industry: Manufacturing

All 5 plans

Active plans first

Lyondellbasell Savings Plan

401(k)Active

Active. The plan filed its annual report for the 2025 plan year.

Plan number: 007Employer EIN 95-4160558
Participants (2025): 10,040
Net assets (2025): $3.0 billion
Recordkeeper: Fidelity2009–2025
Plan administrator: Benefits Administrative Committee
2800 Post Oak BLVD, Suite 5100
Houston, TX 77056
(713) 309-7200As filed for 2025
In effect since: January 1, 1998

Plans merged into this one: Equistar Chemicals, LP Savings and Investment Plan (2014); A. Schulman, Inc. Retirement Plan (2019); Houston Refining LP 401K and Savings Plan for Non-Represented Employees (2009).

Year by year, 2009 to 2025

Plan year	Participants	Net assets	Recordkeeper
2025	10,040	$3.0 billion	Fidelity
2024	10,398	$2.7 billion	Fidelity
2023	10,570	$2.4 billion	Fidelity
2022	10,278	$2.0 billion	Fidelity
2021	10,250	$2.5 billion	Fidelity
2020	10,306	$2.2 billion	Fidelity
2019	9,278	$2.0 billion	Fidelity
2018	7,408	$1.6 billion	Fidelity
2017	7,062	$1.7 billion	Fidelity
2016	6,914	$1.4 billion	Fidelity
2015	6,957	$1.4 billion	Fidelity
2014	6,765	$1.4 billion	Fidelity
2013	6,643	$1.4 billion	Fidelity
2012	6,674	$1.2 billion	Fidelity
2011	8,324	$1.1 billion	Fidelity
2010	8,059	$1.2 billion	Fidelity
2009	8,221	$1.1 billion	Fidelity

Lyondellbasell Pension Plan

Cash balance pensionActive

Active. The plan filed its annual report for the 2024 plan year.

Plan number: 012Employer EIN 95-4160558
Participants (2024): 14,052
Net assets (2024): $934 million
Administered by: Telus Health (US)Earlier: Lifeworks (US) (2020–2022)
Plan administrator: Benefits Administrative Committee
2800 Post Oak BLVD, Suite 5100
Houston, TX 77056
(713) 309-7200As filed for 2024
In effect since: April 29, 1987

Plans merged into this one: Consolidated Pension Plan (2021); Pension Plan for Hourly Employees at Edison, NJ (2020); Pension Plan for Eligible Hourly Represented Employees of Equistar Chemicals LP (2020).

Year by year, 2019 to 2024

Plan year	Participants	Net assets	Recordkeeper
2024	14,052	$934 million	Telus Health (US)
2023	13,913	$974 million	Telus Health (US)
2022	13,913	$948 million	Lifeworks (US)
2021	22,162	$1.7 billion	Lifeworks (US)
2020	12,619	$1.2 billion	Lifeworks (US)
2019	11,026	$1.0 billion	not listed

Consolidated Pension Plan

Cash balance pensionMerged

Merged. In 2021 its assets moved to the Lyondellbasell Pension Plan, sponsored by Lyondell Chemical Company (EIN 95-4160558, plan 012). Accounts moved with them, so that plan is the one to contact.

Plan number: 011Employer EIN 95-4160558
Participants (2020): 10,848
Net assets (2020): $491 million
Administered by: Lifeworks (US)2020–2021
Plan administrator: Benefits Administrative Committee
1221 Mckinney, Suite 300
Houston, TX 77010
(713) 309-7200As filed for 2021
In effect since: December 1, 1946

Plans merged into this one: Millennium Chemicals Consolidated Retirement Plan (2010); Cain Chemical, Inc. Pension Plan (2020); Basell Pension Plan (2020).

Earlier sponsor: Millennium America Holdings Inc. (2009).

Earlier plan names: Endicott Johnson Corporation Employees' Retirement Plan.

Year by year, 2009 to 2021

Plan year	Participants	Net assets	Recordkeeper
2021	0	$0	Lifeworks (US)
2020	10,848	$491 million	Lifeworks (US)
2019	10,013	$352 million	not listed
2018	10,572	$348 million	not listed
2017	11,015	$395 million	not listed
2016	11,424	$381 million	not listed
2015	13,283	$436 million	not listed
2014	13,748	$471 million	not listed
2013	14,228	$497 million	not listed
2012	14,734	$467 million	not listed
2011	15,266	$450 million	not listed
2010	16,500	$431 million	not listed
2009	790	$33.0 million	not listed

Lyondellbasell Retirement Plan

Cash balance pensionMerged

Merged. In 2018 its assets moved to the PDG Chemical Inc. Pension Plan, sponsored by Equistar Chemicals, LP (EIN 76-0550481, plan 004). Accounts moved with them, so that plan is the one to contact.

Plan number: 002Employer EIN 95-4160558
Participants (2017): 10,413
Net assets (2017): $1.1 billion
Plan administrator: Benefits Administrative Committee
1221 Mckinney, Suite 300
Houston, TX 77010
(713) 309-7200As filed for 2018
In effect since: April 1, 1989

Plans merged into this one: Equistar Chemicals, LP Retirement Plan (2010); Basell Retirement Income Plan (2010); Houston Refining LP Retirement Plan for Non-Represented Employees (2010).

Year by year, 2009 to 2018

Plan year	Participants	Net assets	Recordkeeper
2018	0	$0	not listed
2017	10,413	$1.1 billion	not listed
2016	10,141	$968 million	not listed
2015	12,504	$1.1 billion	not listed
2014	12,274	$1.2 billion	not listed
2013	12,150	$1.2 billion	not listed
2012	11,955	$1.1 billion	not listed
2011	11,706	$956 million	not listed
2010	11,476	$833 million	not listed
2009	9,056	$347 million	not listed

Millennium Chemicals Consolidated Retirement Plan

Cash balance pensionMerged

Merged. In 2010 its assets moved to the Endicott Johnson Corporation Employees' Retirement Plan, sponsored by Lyondell Chemical Company (EIN 95-4160558, plan 011). Accounts moved with them, so that plan is the one to contact.

Plan number: 010Employer EIN 95-4160558
Participants (2009): 16,156
Net assets (2009): $316 million
Plan administrator: Benefits Administrative Committee
1221 Mckinney, Suite 1600
Houston, TX 77010
(713) 652-7200As filed for 2010
In effect since: January 1, 1964

Earlier sponsor: Millennium America Holdings Inc. (2009).

Year by year, 2009 to 2010

Plan year	Participants	Net assets	Recordkeeper
2010	0	$0	not listed
2009	16,156	$316 million	not listed

If you had money in one of these plans

Call Fidelity (fidelity.com), which runs the Lyondellbasell Savings Plan. With your Social Security number and the plan name, it can tell you whether you still have a balance and, if not, where it went.
Or call the plan administrator listed on the plan below ((713) 309-7200). That number was filed for 2025; ask for the benefits or retirement plan office.
If your plan was merged, your account moved with it. Follow the link on the plan to the plan it went into, and contact that one.
Still stuck? The Department of Labor's benefits advisers help for free: askebsa.dol.gov or 1-866-444-3272. Never pay anyone to find your own money.

What these numbers are

They come from the Form 5500 annual reports each plan files with the Department of Labor, as the plan filed them. A plan year is usually a calendar year.
Participants counts everyone in the plan at year end: current employees, former employees who still have a balance or a pension coming, and retirees or beneficiaries being paid.
The recordkeeper is the service provider whose Schedule C entry says it keeps the plan's records. Small plans do not file Schedule C, so some plans show none.
We cannot see anyone's account. Only the plan or its recordkeeper can tell you your balance.

Sources: U.S. Department of Labor, Form 5500 datasets and PBGC trusteed plans. How we read them.

All 5 plans

Lyondellbasell Savings Plan

Lyondellbasell Pension Plan

Consolidated Pension Plan

Lyondellbasell Retirement Plan

Millennium Chemicals Consolidated Retirement Plan

If you had money in one of these plans

What these numbers are

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