Sumco Phoenix Corporation 401(k) Plan: Login, Facts & Contact Information

Sumco Phoenix Corporation 401(k) Plan Facts

Plan name
SUMCO PHOENIX CORPORATION SAVINGS AND RETIREMENT PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
SUMCO PHOENIX CORPORATION
Participants
880 (618 active employees)
Former employees with a balance
243
Plan assets
$148,528,418 at Dec 31, 2024
Average account balance
$171,313 across 867 accounts
Employer contributions
$2,781,392 in plan year 2024 (37% of all contributions)
Recordkeeper
Empower Annuity Insurance Company O
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Apr 1, 1998
✓ Employer contributions— Automatic enrollment✓ Default investment for undecided participants✓ Participants choose their own investments— Self-directed brokerage window✓ Profit sharing— Company stock (ESOP)

Source: Form 5500 for plan year 2024 (Jan 1, 2024 – Dec 31, 2024), filed Aug 20, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $7.51 million went into the plan in contributions, $2.78 million of it from the employer (37%).
  • $20.8 million was paid out to participants.
  • Investment and other income added $16.4 million.
  • Administrative expenses were $174,617, about $201 per account.

How the Sumco Phoenix Corporation 401(k) changed, 2019–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
2019887$121.3 million$2.49 million$6.84 million
2020865$136.6 million$2.61 million$8.01 million
2021877$155.6 million$2.62 million$6.25 million
2022898$132.4 million$2.67 million$8.83 million
2023905$145.6 million$2.79 million$12.1 million
2024880$148.5 million$2.78 million$20.8 million

Sumco Phoenix Corporation 401(k) Contact Information

Phone
480-473-6000
Mailing address
19801 N. TATUM BLVD., PHOENIX AZ 85050
Plan sponsor
SUMCO PHOENIX CORPORATION
Employer identification number (EIN)
22-3014284
Plan number
001

Questions about the Sumco Phoenix Corporation 401(k)

Does Sumco Phoenix Corporation contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $2.78 million, 37% of all contributions.

Does the Sumco Phoenix Corporation 401(k) have automatic enrollment?

No. The plan does not report automatic enrollment; employees enroll themselves.

How many people are in the Sumco Phoenix Corporation 401(k) plan?

880 participants at the start of plan year 2024, 618 of them active employees, and 243 former employees who still had money in the plan.

What is the average 401(k) balance at Sumco Phoenix Corporation?

About $171,313 per account: $148.5 million in plan assets across 867 accounts with a balance at the end of plan year 2024.

Who manages the Sumco Phoenix Corporation 401(k) accounts?

Empower (listed on the filing as EMPOWER ANNUITY INSURANCE COMPANY O) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Sumco Phoenix Corporation. How do I access my 401(k)?

Your account stays with Empower after you leave, so you can log in with the same credentials. If your balance was small, the plan may have rolled it into an IRA in your name. If you can't find it, Beagle can locate it for you.

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