Komatsu Mining Corp. 401(k) Plan: Login, Facts & Contact Information

Komatsu Mining Corp. 401(k) Plan Facts

Plan name
KOMATSU MINING CORP. RETIREMENT SAVINGS PLAN
Plan type
401(k) with employer contributions and profit sharing
Plan sponsor
KOMATSU MINING CORP.
Participants
5,370 (4,016 active employees)
Former employees with a balance
1,310
Plan assets
$923,375,988 at Dec 31, 2024
Average account balance
$168,900 across 5,467 accounts
Employer contributions
$35,739,348 in plan year 2024 (44% of all contributions)
Recordkeeper
Fidelity Investments Inst. Ops
Plan year
Jan 1, 2024 – Dec 31, 2024
Plan established
Apr 1, 1984
✓ 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 Oct 15, 2025. Public filing with the U.S. Department of Labor.

Money in and out in plan year 2024

  • $81.8 million went into the plan in contributions, $35.7 million of it from the employer (44%).
  • $96.7 million was paid out to participants.
  • Investment and other income added $110.5 million.
  • Administrative expenses were $205,353, about $38 per account.

How the Komatsu Mining Corp. 401(k) changed, 2018–2024

Plan yearParticipantsPlan assetsEmployer contributionsBenefits paid
20185,714$597.7 million$24.7 million$52.5 million
20195,789$730.7 million$27.6 million$57.1 million
20205,737$812.6 million$28.9 million$94.2 million
20225,115$713.6 million$35.6 million$82.7 million
20235,214$827.9 million$33.1 million$74.5 million
20245,370$923.4 million$35.7 million$96.7 million

Komatsu Mining Corp. 401(k) Contact Information

Phone
414-670-4400
Mailing address
PO BOX 554, MILWAUKEE WI 532010554
Plan sponsor
KOMATSU MINING CORP.
Employer identification number (EIN)
39-1566457
Plan number
005

Questions about the Komatsu Mining Corp. 401(k)

Does Komatsu Mining Corp contribute to the 401(k)?

Yes. The plan reports an employer contribution arrangement. In plan year 2024 the employer contributed $35.7 million, 44% of all contributions.

Does the Komatsu Mining Corp 401(k) have automatic enrollment?

Yes. The plan reports automatic enrollment of eligible employees.

How many people are in the Komatsu Mining Corp 401(k) plan?

5,370 participants at the start of plan year 2024, 4,016 of them active employees, and 1,310 former employees who still had money in the plan.

What is the average 401(k) balance at Komatsu Mining Corp?

About $168,900 per account: $923.4 million in plan assets across 5,467 accounts with a balance at the end of plan year 2024.

Who manages the Komatsu Mining Corp 401(k) accounts?

Fidelity NetBenefits (listed on the filing as FIDELITY INVESTMENTS INST. OPS) is the plan's recordkeeper, which is where participants log in to see their balance.

I no longer work at Komatsu Mining Corp. How do I access my 401(k)?

Your account stays with Fidelity NetBenefits 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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